I've noticed this tendency among a lot of right wingers. Lately I've seen it a lot in metalhead circles, particularly black metal, which does have a bit of a nazi problem in some parts.
They'll crow and gloat about how the scene isn't a safe space, that it's founded in hate and intolerance. But as soon as well-known nazi/NSBM-related bands or members of the scene are deplatformed and antagonized for their views, the tone goes straight to "get these leftists out, this is a right wing scene! This is censorship!" and so on.
Apparently only right wing radicals should be allowed to have safe spaces... /s
We’ve done this kind of thing before, and we’ll do it again. Facebook responding like this IS the marketplace of ideas reacting.