As for why schizos are concern, here are two reasons that instantly come to mind:
Kantian,
What makes you think that I am a threat to you or your family? Why would you threaten me with violence when I haven’t done anything to warrant being threatened? If you took the time to learn about what you are afraid of maybe you would see that I am a person who deserves to be treated as fairly as anyone else. Just because I am schizophrenic doesn’t mean I go around trying to hurt other people. In fact, most of us don’t do anything of the sort and there is evidence to support that.
What if we were good friends and one day I confided in you that I was struggling with schizophrenia and was being treated but I was afraid of telling my friends because I was afraid they would push me away because of the misconceptions surrounding it? Would you never talk to me again? Would you be afraid everytime you saw me even if was still the same old person you knew? Would you tell your family to avoid me? Can you imagine what it’s like to experience that when you know you have done nothing wrong, nothing to deserve it?
As for why schizos are concern, here are two reasons that instantly come to mind: