The problem with censoring is the bias you showed in your comment, with who you selected as examples.
Eg, mentioning the Proud Boys, but not Antifa — the violent street gang who committed billions in arson, murdered dozens, and is still pepper-spraying children in Portland parks. You picked the smaller street gang, likely because you’re politically aligned with the larger, more violent one.
I don’t disagree that many groups are “bad” — but that doesn’t mean I believe we can regulate that without the censorship being corrupted into something worse.