Violence is a part of life, and like everything else, has appropriate applications that must be learned and practiced.
Liberals have removed appropriate violence from the curriculum and replaced it with draconian shaming and punishment.
As a result, young people do not learn appropriate violence. Instead they learn what is done to them by their teachers and parents - punishment designed literally to break someone’s spirit and force them into psychological slavery.
So that’s what they do to each other.
When I was growing up boys would occasionally settle a serious disagreement with a fist fight. We all knew there were unwritten rules about how to go about that, "dirty" hits and so forth. And there were other rules, like you don't hit a girl. As school authorities suppressed any kind of physical altercation the kids lost all that. They don't know there are supposed to be limits.