The inside-the-law approach that works to some limited extent is public community rejection. Things like large groups showing up and standing with their back to the Nazis.
The method that has historically stopped Nazis like this involves getting some level of police cooperation and beating them up
The German Nazis were defeated with overwhelming manpower & firepower, not passive suppression.
They were defeated by actually standing up to them. That’s all I’m suggesting we do now!
Okay, I guess I misinterpreted what you meant by suppression. Yes, by all means, stand up to them.