Their presence is in itself counterprotest if you're able to figure out they're right-wing in the first place. I'm not sure what type of arbitrary behaviour you're looking for here.

It's intimidating to be walking around with guns drawn. That's what I'm trying to get at.

It's also intimidating to try to counterprotest in the face of such a huge mob when there's been numerous instances of violence from them in the past. I certainly wouldn't go without a gun if I were to show up at one of these things lest someone see me as an easy victim.

You're just vastly overstating the prevalence of violence at these protests. Do you have evidence for these assertions or are you just throwing them blindly?