The point is if I am waiting for the templars to decide when to kill me I would rather rise up and decide my own fate whether it was death or not. I cannot understand the mentality of someone who would sit back and take abuse rather than rebel against it.
And our point is that you have no right to decide whether we should do the same. All it does is make you just as bad as the templars.
The Circle system as it was was terribly oppressive and in need of an overhaul, but you make it sound as if all mages that die did so young and at the hands of templars. Which is blatantly false, given that we see elderly mages all over the place.
The templars were ready to kill them also.
Ready to, yes. Willing to, also yes. Nobody denies that. But they weren't actively killing them unless the need arose.
The rest of Thedas doesn't need a reason. "They're mages" is usually enough. The knowledge that the Circle and its templars were there to take in those children was the only thing that halted most people from just killing children the moment they manifested their magic.
Now that the Circle is gone, no such feeling of safety exists anymore. In rebelling, the mages have doomed many children to die at the hands of people that fear them.
That is the kind of short-sightedness Vivienne is talking about.