I have an embroidered, velcro-backed patch of this for my range hat.

That’s different than arguing with people on the internet. Daryl Davis shows these people their shared humanity face-to-face. All I’ve ever seen from letting fash “debate” people on the internet is them slowly spreading their ideology to vulnerable people who are viewing the same conversations. Saying stuff that sounds reasonable on the surface like, “not everyone you disagree with is a nazi” even though they want to kill minorities as if that motive vs not wanting that to happen/doing everything in your power to make sure it doesn’t happen is a simple disagreement.

Nazis/extremists don’t respond to rational arguments against their ideology.