It has never been like that. Tevinter set up a distinction between mages and normals and what they could be long before there was a Chantry. So have the Dalish and Rivain. And in all those societies where mages are supposedly integrated, they are the rulers.
What reason is there to believe the same won't happen everywhere else? You don't place the Flash in a race and call it fair.
And have mages not proven how abusive they can be? Nothing the Templars have ever done even comes close to Tevinter.
And yet, you were just arguing how there is no difference between being rules by nobles or by mages.
Also, remember than Wynne thought war with Gaspard was an opportunity for the Circle to gain leverage by supporting the winning side.
Perhaps, but if the Chantry really wanted to prevent that distinction they didn't do a good job. Their work to segregate mages just encouraged a mage society, the very thing they fear. And life isn't fair, is it fair that nobles get to run around and do whatever they want? Is it fair that some people are more intelligent than others? What makes mages different from geniuses that one gets segregated and the other gets celebrated?
And the Tevinter mages are not the mages of the South. Arguing that all mages are the same is like arguing all elves are the same, they're really not. I'm not arguing that there's no difference between being ruled by mages or nobles, I was arguing that both are born to power, yet nobles get to do whatever they wish with theirs yet mages do not. However Xilizhra makes a good point, what of all those Chevaliers who slaughter elves? What of the Kirkwall magistrate's son who killed little children? People are capable of horrible things, being a mage has nothing to do with it.
Of course Wynne did. But since when did she become leader of the Circle? And even if it is good for the Circle why should they be put into a situation when they have no choice? They still have no say in the matter and the fight has nothing to do with them. They are tools which could just as easily be turned to a corrupt purpose as a noble one. And as we've seen the Chantry is quite happy to use it's tools in ways that aren't befitting of a religious organisation, usually ways that benefit Orlais.
Unless of course the Circle would be given a vote on the matter? Oh wait, no they wouldn't.