Some here have argued for exactly that. And I disagree that mage restrictions being as harsh has they are is justified. It's some of those very restrictions that allow abuse to take place. They are not simply restrictions when the people as a whole are preached to view mages as something to fear, loathe and accept as second class citizens. For if they were viewed as equals, the people would not accept their imprisonment either. Using their piety to keep fear of magic alive is a Chantry specialty. Then as a result, the people accept that mages must be oppressed, that mages should be denied freedoms, the right to marry and have children or take up whatever occupations they wish. When a demographic of a people is seen as less than everyone, abuse is inevitable. No. Something different needs to be tried. The current restrictions do more harm than good and when mages snap because they've had enough, everyone points and goes "See? See! They're dangerous!".
What else is to be concluded that you first make thieves and then punish them?
Abuses must be adressed but the Chantry does not teach that mages are "second class citizens". It teaches that mages are dangerous, certainly, but that is simply the truth. The only claim regarding magic that the Chantry has ever made that may be questionable is that they created the Darkspawn; everything else is simply a matter of fact.
People, of course, react strongly to the idea of others who can force them to eat their families with a cut on their wrist and then set them on fire with a wave of it but should we deny them information just because it's not pleasant?
The Circle is a good system. It denies certain freedoms, that is true, but it presents alternatives. Mages aren't allowed to reproduce but they can find their family on the people around them. They are allowed to leave and visit cities or conduct work if they prove themselves trustworthy. They are given acess to levels of education, housing and food that are denied from most of the population; heck, the mages in Val-Royeaux lived in Emperor Drakon's former palace.
People are kept safe from harmful magic, Abominations and magical domination of society while mages are protected from lynchings and the like. Abuses happen and they must be adressed; greater effort needs to be put into policing Templars as well as mages; but, all in all, the Circle is a good system.