That's probably a big difference between those right-wing activists and Antifa or other left wing activists. Trump keeps saying Antifa should be banned, but since they are an amorphous group with no defined leadership structure that's kind of hard to do. It's asking to ban an idea. It's like saying "let's ban civil rights activists".
Whereas the right wing version definitely has to have a hierarchy and well-defined pecking order, and if someone just says they're Proud Boy they'll say "oh but they're not actually a card-carrying member so it doesn't count". Suuuure, do they also apply that logic to Antifa actions? They can't really comprehend the idea of something that nobody is actually really in charge of so they project their own world view on them and assume Antifa are loyal footsoldiers. Of god knows who. They probably assume Nancy Pelosi is in the line of command for Antifa actions.
Even Qanon which is the right-wing extension of just being an Anon couldn't go with creating a hierarchy: they need a supposed authority figure, Q as their leader. Like, you had the classical anons who were just shitposters, but now they have Anon+ who bow to worship Master Anon who is effectively The Pope to their Trump-worshiping religion. Hence the stuff about the "legit" tripcodes of Q vs the false prophets, and how they literally believe that God Emperor Trump is sending them commands though things like hand gestures.