Institutionalization isn't allowed anymore, unless it is for the criminally insane. Even then, they can only be for a number of years, then they are released to group homes. It's crazy, but they are living among us and we are suppose to tolerate it.
The NYC people, 2 separate instances that I can recall, who were shoved in front of subway trains by mentally ill homeless people, comes to mind.
We seemed to be so much more civilized when we were less tolerant.