I just realised there's a really amazing example of not deadnaming (or mispronouncing the name of) even your worst enemy.

The Nazis.

I've heard recordings of Winston Churchill and others pronouncing it "nah-zee", which was apparently the usual English pronunciation at the time. But we've since switched to "naht-si", which is apparently much closer to the proper German pronunciation.

So if, as a(n English-speaking) society, we can make specific changes to correctly pronounce the name of the most vile, hated group in history, I think we can do it for just about everyone else.