it is generally the case with the discourse around speech nowadays that neither side of the discussion understands what they're talking about.

so, when forced to take a side between these antifa-type groups and these libertarian-right type groups, i will very rarely do so. it is usually the case that they're both hopelessly wrong, because neither of them understand the basic legal issues at hand.

abstractly speaking, i'm more with chomsky on issues of the sort: the most important speech to protect is the least popular speech. the way to defeat fascism is not to censor it but to deconstruct it, which is what a group like antifa is actually doing  (whether they realize it or not). and, in fact, the government rarely intervenes in these cases, so there's rarely an actual speech issue to defend, despite what the libertarian-right groups might claim.

it is usually the case that if an issue to criticize arises then it is when the police are unconstitutionally called in to stop the protestors, who then have their speech rights violated, and who don't seem to understand the irony of it.