Anders no matter how well intended he may have been was wrong. Yet in light what he and other mages(one how happens to my in-game sister) were facing at the hands of the Meridith can't say I don't understand why he did it.
So lets start first with the head of the Chantry in Kirkwall - I can't decide if she was just a fool doing nothing or if she was playing the fool just "Sitting Still"(being still and doing nothing two very different things) and pulling a very large scale Zen like move.(I'll make up my mind on that after this current play through.)
Meridith is and was crazy. See I had issue with the Templars from the start with the whole Tranquil thing that does not sit very will with me. Stripping someone of there very emotions bothered me in DA:O and DA 2 I found out why. Because
of course there are Templars abusing the living hell out it. Hell there mostly like(remember long since i played the game memory is hazy) Templars that were using the threat of it to have their way pretty female mages or handsome male mages( depending a preferences) or both and why not right you absolute power at this point and we all know that that does

"Now be a good little mage and do X or you'll be made Tranquil." Oh and if said Mage cried foul - BLOOD MAGE and thats all she wrote.
Right there is the problem its all knee jerk reaction and no thought on her part. She so damn afraid that she can't even see that her Order is making the problem far far worst. Whats that old saying about "Pushing things into a corner" Well that is what the Templars did push. The reason? Who knows - the cynic in says that they would have pushed anyway just to find a reason to burn the place down. I can't even agree with the Templar way of thought its like the Witch Hunts - " Hey if floats she's a witch burn her, if she sinks and drowns she was innocent." Um ain't she still dead either way - just sounds like an excuse to kill this person anyway to me.
Of course you are going to have extremist in anything thats to be expected the problem lies in driving the moderates to the extreme's. That right is what drove me up a damn wall because the First Enchanter was moderate thinking man, reasonable understanding. Knew there needed to be change but also new there needed to middle ground but Meridith kept pushing and throwing more wood on the pyre. By which at that Anders had seen and heard enough having already dumped the gas on the prye (Setting the bomb spell) and all he need was good reason to set it off and Meridith gives it him with actions in Act 3 and BOOOM.
What eats at me the most is the got damn it all if he was not right in alot of ways - this was coming - hell I saw in first game. There is only but so long that some one is going to put up with what Templars and Chantry were doing till enough is enough. All he did was lite the match and watch the fire burn and that makes me want to punch him. What makes me want to kick him is that he didn't even take into consideration that the Mage might very well LOSE the war. Well if that happens he ahs essentially damned them forever. Since I played a male Hawke and Befriended him(which you can do w/o romancing him) I want to break his arms for putting my Hawke's sisters neck the blade. First my Hawke's brother then my Hawkes mother( Oh and I killed that SOB - killed him good and buried it why? That SOB is not getting the noterity of even being a Blood mage seriel killer nope he just is going to be DEAD. Frak Justice for him I was playing a Rogue anyway

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Now my sister and my girlfriend Merril(that kinda just happened but hey) are in danger because Anders decide to kick of the Templar mage war not counting all the other people who are going caught in the crossfire. GREAT! Once again thanks Anders and Merideth /sacrasm. Then I blame a little bit of on my Hawke as well - should have known better than to try to negoiate with someone like Meridith. You can never negoiate with someone who does not want peace period. Why becasue they are not coming to the table in good fatih. Anders at least early on wanted there to be a peaceful change(A oxymoron I know right) but after his friend and everything that went out the window.
So now what to do with Anders?- I would be lieing if I said I did not think long and hard about killing him. I took all the factors in the consideration first off.. Killing Anders would have done absolutely, positively, completely nothing to stop Meridith. Nope she would have been - " Hey thanks for one less I have to sully my blade with(a blade that happens to be evil sword of somewhat explained Doom.) So lets I have a a crazy Templar that now has every right in her eye to much in the Circle and kill everyone there(includeding my sister and my girlfriend). At that point it was siding the crazy rightly intentioned but idotic mage best friend or Crazy Homicidal, Genocidal Regilous Zealot Maniac. Well Lesser of two evils ( In perfect world I would have killed them both and told the people a big hub bub and both parties are now dead and everyone can go back their regular lives.) Unfortunately - the DA world much like our own is far from perfect. I am going to need that foolish bastard to win war that he started at least he can blow stuff up right way.(Yeah the dead is done. my mood thinking is how fast can end this before its turns to a complete blood bath and Blade blood rave)
So by the defualt of Lesser of two evils Anders get his "me stabbing in face before ripping Meridith in half free card" Yes its lesser of two evils situation and unfortunatly those situations... suck BADLY. Why becasue there is no right answers... all the answers are just plan suck its just a matter of how much suckege do want have on your plate.
So now I'm looking at Avilene, Verric, Fenris,Isabela and Merril(this is before I DL'd Se - "Well this is a colossal cuslter fc"k in a Antiven(Sp) brothel" Well I am not going let the kill my sister and my girlfriend, no self respecting man and/or self respecting brother with a damn is going to let some just march in a kill em. At this point im thinking even if am save a many these Mages who had nothing with this. Imma have to kill alot of Templar to do it - yep so I'm going to an enemy of the Church ANYWAY(this whole situation just gets better by the moment) So of course Fenris being Fenris goes all "I'm blah, blah blah, slave, mages evil, rawr." Me at this point im kinda like " Dude a blood mage cut my mother to pieces and sewed her head in to his corpse bride, I feel you but if go other there with Medirith...Imma cut your throat." Now don't get wrong Fenris was a badass - had some anger issues but still badass and well he went over to Medirith side and I killed him. Yes Seriously I killed him and did not regret it

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So now the First Enchanter seeing his circle getting slaughtered just says "AH well their going to kill me ANYWAY so F- IT." and goes all blood mage. Now would he done this under normal rational thinking circumstances. No of course not but Meridith is out for blood at and somebody we now gave her and whole damn city a good reason to be out mage blood. So whats the First Echanter to do - he's a dead man anyway why the hell not.
See what desperation can do to a person and what alot of power can to another? Anders at heart a good man who in the end was driven do a terrible thing. All of this maddness and a lot of people dieing becasue of extremes absolutes and no middle ground from start. "Some Mages turn to blood mages so ALL Mages must be locked away." "Some of theTemplars and the Chantry abuse their power so they ALL must burn and Circle must fall" This right here is what whole drama is about Extremes and Absolutes. How thinking and working etc, etc can lead to really bad situations at this point it is everyones fault. Could this have been avoid yes even Anders said but the Templars would not give a inch so afraid of the Blood Mages that they did not realize they were adding to the problem by pushing moderate mages to extremes. This of course then push Hawke to the extreme of the either fighting the Templar to protect(Bethany and Merrill) or Sideing with Templar( if the player chooses). All of this thuse push the entire world to the extreme of War. The Templars and the Chantry have entirely too much power in Circles and checks. The Mages don't have enough power over their own fates so they gasp at anything will give the power of their own circumstance(even things that could in the be very harmful). The People feel like they have no power to protect themselves from the Mages so they turn a to System that in of itself is broken thus making themselves prision in there own right when the families are broken up.
The system as it is set to fail eventually it HAD to change - the thing funny about change is that its fact of life and if held up forcefully for too long can come about violently and be destructive(So change in its nature is destructive). In this case Anders starting the war. Which now after rather long post brings me back to the Mother. Was see being apathetic or did she see the writing on the wall and realized the neither side could resolve the whole thing peaceful. That at some point Meridith would have stopped listening to her or maybe she get someone new as Knight Commander - that person could be worst than Meridith( That is a possibility). Now I am so pacifist that hates war no, sometimes the extremes ARE the only but only after all other avenues have been extustated. What aggrivating about the conflict is DA 2 is that they did not even try. Hell at least try. no its This or That. Us or Them. You the Chantry did not even Say "HEy you know breaking up families and stripping away peoples emotions is harsh. Give someone that much power over another person is wrong in same its wrong for a blood mage to domninate a person. Is this really best way we can go about this?" It was just "Oh there is no other way - EVEN after exhusting all Options...I don't even think i could condone what the Chantry was doing and enviroment they breed and created. Yet IF the extremes were not taken that enviroment migh not exist anyways.
This is pretty long...I may just make it a blog.