"Original expectations that community care would lead to the full social integration of people with severe mental illnesses have not been achieved. The majority of patients with severe illness are still without work, have limited social contacts and often live in sheltered environments. Services in the community sometimes provide a new ‘ghetto’ for the mentally ill, where patients meet each other but have little contact with the rest of the community. It has been argued that instead of ‘community psychiatry’, reforms established a ‘psychiatric community’.”
Bolded for emphasis: I found this critique absolutely mind-blowing when I first encountered it as a student.