So Mages should be enslaved, tortured, raped and murdered so that the average sheep can sleep easier in their beds? I think not. Vivian's opinion is one of the major problems with Thedas. Just because she had it easy in her Circle doesn't mean that all Circles were the same.
What? See, this is why I think any "pro-mage" people exist. They have huge misconceptions.
Enslaved: If "enslaved" means you get to relax in a gigantic tower, never worry about finding food or shelter, have access to education, you're surrounded by people like you, and never have to work a day in their lives then I'd love to be enslaved. Finn apparently loves it.
Tortured: Umm, what? Not even Ser Aldrik tortured mages.
Raped: Its implied Ser Aldrik raped mages/tranquil. More than implied, Divine Justinia and even Meredith thought he was crazy.
Murdered: "If you cannot think of a better way, do not brand me a tyrant!" - Meredith
Mages love to complain and whine about freedom, totally oblivious to all the luxuries they have. They demand freedom and don't care about the consequences others suffer when a mage goes bad... Nearly every mage we met in DA2 was "bad".
Even Anders himself had an easy Circle. Security was lax, "everyone was kissing everyone", even Wynne of all people slept with a Templar. And look what happened because of that... Mages still wanted more and ended up killing everything because a portion of them were selfish... And really, it only takes one bad mage to cause devastation. That's why Templars need to be vigilant.