We already have a simple and effective method for dealing with this and it's easy but unpopular with the key demographics of the party coming into power in a few weeks. What if instead of inventing reasons to censor one side and not the other we just go back to actually expecting police departments to be effective and for district attorneys to do their jobs and press charges against violent actors in instances of ideologically motivated violence? It's like Americans think the only thing holding their society together is the freedom to be a violent asshole.