At the moment, the right is what is pushing for authoritarianism in most western countries. And fascism is conservative in nature and not progressive. All fascist policies are by definition right wing but not all authoritarian policies are fascist.
And if anything HN is really good at being weirdly against bread and butter social democratic policies. It’s an American website after all. I don’t think you could ever get away with discussing far left libertarian ideas on HN.