The George Floyd one at leat I've seen discussed outside places that could be termed alt-right.

There are also plenty of things that can't be discussed in alt-right places, only in proper free-speech places (which are rare and often heavily contaminated with alt-right due to them being kicked out of everywhere else). E.g. if you wanted to discuss whether "consensual child molestation" is actually harmful you'd get banned from any right-wing space.