People who experience psychosis are more likely to be the victims of violence than the perpetrators of it, and it is perfectly safe to live with someone who has a well-managed disorder with psychosis as part of its symptom profile. I understand this may not be your personal experience.
It is true that it is possible to manage psychosis.
But it is also true that if you live with some one with psychosis you must respect the illness.
Denying that is dangerous. Unexpected violence is dangerous, and unexpected violence is a common symptom of psychosis.