I see antifa as these potentials, first to cause the violence so they can solve the problem with more laws less rights, the useful idiots who will round up people and do the see something say something rats. Next they are useful in probing the opposition how far till the push back and who sides with who. It gives media fear porn to push thier narrative. It makes polarizing the issues on non intellectual level on feelings either your with the usefull idiots or against so you get re educated.
Look at what the new push is calling conspiracy theoris apunshiable ofence in both criminal and civil courts, no way that is speech censorship. Expecially when certain theories the official story is so much bs you have to be brain dead accept it.