Their behavior is in no way excusable. They need help, and they are most definitely ill. Their levels of violence are harmful to others and to themselves. To verbally bash them unfortunately has the effect of increasing their levels of violence. Even simple-appearing trauma knots are often complex, usually resisting being untied with a few simple insights or quick fixes.
Some women seem to have forgotten how women gained poor self-esteem.
Don't bash verbally, except briefly in therapy or by yourself.