I wouldn’t argue with the dude; he’s got a clear case of bad-faith-itis. What you did was bad, so you shouldn’t have done it, but no I won’t tell you how to fix it.

The absolute best you could have done is cross-posted to a Mastodon/Bluesky/whatever account as well, but you can’t just always go around yanking the rug out underneath communities especially if you’re in a position where it’s not just lazy shitposting and worthless commentary.

…that said, you have moved anything you can to being posted somewhere in tandem riiiiiiight?

Open another channel and tell everyone that the main channel is the new one. And tell them how to join the new channel, step by step.

how am i supposed to give you a better strategy when you’re just giving the vaguest possible “scenario”.
here’s a good strategy:
don’t support nazi’s.
boycott all nazis.
they make money off advertising to users, by being a user, you are financially supporting nazis… stop it.

pretending like the only possible way to communicate with your desired audience is by supporting nazis is uncreative, ineffective, lazy, and destructive… that reasoning is why places like that continue to exist and grow.