The Nazi thing is dumb in this case. There are actually a not insignificant number of Black voters who feel Biden was a respected elder who was betrayed. And at a time when primaries and elections are decided by narrow populations, one may not want to just blithely dismiss them as Nazis.
Like, there aren't many of them. But there are more of them who are gettable voters than white dudes with Nazi tattoos
Ring the bells that still can ring/Forget your perfect offering/There is a crack in everything/That's how the light gets in."- RIP, Leonard Cohen