Hate groups are the problem, not how they express themselves online.

I find it odd that it's perfectly legal to be a group with illegal intent. That's the only loophole that needs to be closed.

If a group is deemed to have "intent to harm and endanger others" then anyone who affiliates themselves with them should be deemed likewise, and attended to.

So the issue is of pre-crime. A crime has to happen and speech isn't a crime (although censorship should be, we censor them instead).

But if members of a group have already committed crimes and crimes of hate, then that should be enough to legally impose restrictions on the group and its members, including those that haven't. Maybe not arrest them immediately, but monitoring etc should be perfectly legal (and maybe done already).

All any member has to do is unaffiliate themselves to free themselves from being high risk and attended to by law enforcers.