I heard someone mention a book or something looking at past events. It mentioned that sociopathic people join these groups partly for the opportunity to do bad stuff. The bad stuff happens when a larger political group gives them cover for some political reason. I think that is what we see happening.
What bothers me is 1) certain people seem determined to erode and erase any right to self defense and 2) they also want to use violence as a political tool. The sociopaths committing crimes don't bother me quite as much. I have ways to deal with them. What bothers me are the people in the background setting this up, funding the politicians who turn a blind eye, providing transportation to bring the bad guys to town, providing bail and legal help to support them if arrested. I don't know how to deal with those people or even find out who they are.