Adding on, the ideal for them is that they can egg on enough people that someone responds to their hostility and they can then escalate. After this back and forth turns a couple times, blam, now you have some actual violence taking place, but then the police aren’t going to do jack shit because they “dunno who’s right”. And in any case, who are the police gonna crack down on harder, a bunch of good old boys, whose politics they probably agree with, or some random person, probably a minority?

If the police end up doing anything significant, then it’s likely that the polling place closes, and then they’ve won.