I’m simply asking this question because of Lemmygrad.ml existing, and that there isn’t a far-right equivalent of it yet. If Lemmygrad has any standing for its right to exist under free speech, where is the line drawn for other extremist political ideologies? If Holodomor skepticism is allowed, then what stops Holocaust skepticism? (as it is generally accepted the Holodomor was man-made). I’m simply wondering what gives far-left politics a right to promote such extremist views in the Fediverse, when their far-right counterparts would be Defederated in minutes.
OP mentioned Holodomor, so I’ll just point out that ML’s generally don’t deny that there was a famine, or even that it was exacerbated by bad policy. The specific point of contention is whether it was intentional.
https://en.m.wikipedia.org/wiki/Holodomor_genocide_question
Even historians debate this, so I don’t think it’s reasonable to characterize it as “genocide denial”.