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
So let me get this straight, you want to commit mass murder, but you also don’t want to get hit? Idk, man, seems a little hypocritical.
I always read it as a guy who saw war movies where people cower in fear of Nazi officers so he went outside expecting the same results.