Paranoid schizophrenia is a tough nut to crack. You can't just lock people up because they're weird. Legally, you can't medicate them if they don't want to be medicated. Some paranoid schizophrenics will never hurt anyone, except maybe themselves, while others are a risk to have out in the world. How do you know which is which before they do something harmful? Literally, you can't. I worked in the mental health field as an administrator for 15 years and that's what I learned from the social workers and psychiatrists and from watching hundreds of clients for so many years. Schizophrenics are as individual as any other humans. Some deal with their illnesses in better ways than others and some of much more capable of resisting their voices than others. They don't deserve to be punished for that. And, then there are others ....

We need to be realistic about what can and cannot be done to control people in a free society.