Regardless, where do all those "crazies" go? They have to keep living. They have to exist in this world. And if they literally cannot conform to it, why is it then acceptable for them to suffer and to stand back and let them die?
Why then do so many thing they should just be ignored and forgotten about?
Having mental illnesses are already draining, shit like depression and the like lead some to just... disappear. And there's many that think that's just fine by them, but they'd never say it.