Technically, by Specialka's arguments, just by being there and being armed, that means they could have shot someone, and that imagined possibility is all it takes to justify pre-emptively shooting them in self defense.
So the protesters could have just mass-gunned-down every single militia member just for being armed, and Specialka thinks that's okay.
Well, it's either that, or they're engaging in rank hypocrisy over partisan allegiances.