She calls mages monsters every time you talk to her. And making the people fear mages gives her more power of the mages.
I'm sure they are happy I mean who wouldn't be happy about being forced away from their lovers and never allowed to contact them again. Their children who were born while they were free being taken from them to be raised in Chantry orphanages being taught to hate mages or if they are mages to hate themselves. And I'm sure their freedoms include twenty pieces of paper work to open a wind and smell fresh air and likely have to give up a vital organ to step a foot outside. Unless it is to kill on command or heal some noble. Their "happiness" won't last.
Umm, she never called mages monsters in my game. Just that magic is dangerous. And it is.
Also, most Circles do allow mages to go out and visit loved ones. Heck even Kirkwall let Leandra visit Bethany, and that's considered one of the worst.
Yeah taikng kids away from mages is terrible, and should be remedied. But taught to hate mages? Umm, no. Some Chantry types do hate mages, but certainly not all. That's sheer hyperbole.
And being allowed to leave the Circle only requires permission fro the First Enchanter. Maybe some require a lot of paperwork, I wouldn't know. But it is shown that Vivienne allows mages more freedom than they previously had, and keeps the Templars under tighter control.
But all this is off topic. How about that Ameridan, huh?