I had a girlfriend who taught in an majority black school. She quit after a year. She was threaten with a knife, hit, kicked,spit at and threatened with death. None of the kids were removed from the school. If you can’t remove with or without force then chaos will reign and little learning will get done.
My advice for teachers in a similar situation: bring in a flame thrower. Melt one or two of these menaces down and that will be the end of the problem. Yeah I know it would never happen but once your relinquish control, it is impossible to get it back without draconian steps.