Tldr; something about morals and punching Nazis, might as well help them back right into the propeller of the ride that got them here. In my limited experience with fascist states from late 20th century Europe, not only are the practitioners simply useful imbeciles, they are also frightened little cowards. They rely on the false sense of strength derived from their fabricated unity. Ergo the fascist bundle of blunt, brittle little sticks. Catch one of them by themselves and it's a very different story. Their erosion started before they ever even banded together. Apart from only punching them, which might incidentally embolden them together under something slightly more tangilble than their bigoted principles, the trick I think is to have them implode.
See, with all those extremely intolerant judgemental racists, most of them are only less than a couple of degrees removed from what they proclaim to hate. The black-eye subsides, and can always serve as a badge of honor. The fact that their mom's is Jewish, their dad's gay or their brother's black, well, that eats them inside-out: starting with the weakness that allowed this to happen in the first place.
Just two cents.