Bob, I see where you are coming from and I agree. However, at this point in time there is only one basic definition. That is to cause terror for political gain, which these people did. It’s hard to really see them as anything else using the definition.
Of course, we haven’t even gotten that far though. People are still calling them “activists” and “militia” for some reason. We both know if it were a PoC like a Muslim group, there would be no doubt what media would call them.