We are not talking jail, we are talking closed institution. The kind of hospital you check in but do not check out from, as many mental illnesses are incurable.
Buddy, I can deprive you of several days of sleep, put you under severe emotional duress and have you experience a psychotic breakdown. Are you seriously saying you yourself should then be locked up for life?
Are you saying that someone experiencing a psychotic breakdown should not get psychiatric care?
Try to be charitable in your interpretation.
Yeah my charitable interpretation is that it's all just a thin veneer over your main argument which is "kill the poor"