You believe there is a better way to protect people from potential threat than making sure the threat never reaches them? How?
Also you can't agree with protection of the innocents AND agree with Anders actions, he placed those very people under DIRECT threat.
V blew up a building too, hence the comparison. For every Martin Luther King or Anne Frank or Rosa Parks or Gandhi you see in the world, there are people with blood on their hands who give these leaders and rest of the world the opportunity to take the moral high road. Their actions ARE despicable, but that doesn't make them any less necessary. This is the point that the rest of us are missing, from our very comfortable positions in life: being able to take the high road and condemn the actions of murderous freedom fighters is, sometimes, not recognized for what it is: a luxury that we would NOT HAVE if not for those murderers giving the rest of the world something to rally around.
My opinion is giving mages complete autonomy inside the circles. Obviously separated from chantry and self-operating founded by selling they enchantments and in general other magical services. The Templars are only obligated to keep them inside and keep them safe from the outside. When mages have decent comfort they will fight for it so if some mages decide to go on a blood magic orgy the mages will fight it instead of joining them or cowering. They simply never get a chance to do so and having nothing to lose they join the fray like Uldred's case and those who fight (minority) either die or worse.