Don't underestimate the power of socioemotional damage against fascists鈥攅specially low-level ones.
Show your contempt for their choices/actions/affiliations early, loudly, and often.
Meme their mistakes.
Make fun of their symbols, uniforms, and tactics.
Make them look like the fucking bigot-clowns they are.
These guys (and a few gals) thrive on their cowboy Gravy Seal paramilitary cosplay identities. They want people to think they're tough and scary, but they're just fucking irrelevant cowards who peaked in highschool (if that) trying to exert control over others with their limp-dick energy because their mom didn't hug them enough and their dad was too busy drunk-texting Tucker Carlson's Only Fans line to play catch with them.