Diabetes is kept under control by insulin. When patients stop taking their medication, the disease process flares up and kills them. Lupus is kept under control by steroids. When patients stop taking their medication, the disease process flares up and kills them. This is not what happens when patients with serious mental diseases stop taking their medication.
Depression is kept under control by antidepressants.
When patients stop taking their medication, the disease process flares up, but the disease does not kill them. They kill themselves, an act psychiatrists attribute to their so-called mental illness. Schizophrenia is kept under control by anti-psychotic drugs. When patients stop taking their medication, the disease process flares up, but the disease does not kill them. They kill someone else, an act psychiatrists attribute to their supposed illness.