I've been to the Racine Park many times. The most that yard can hold is 700-1500 folks. It's pretty much like a really big back yard.
I MIGHT start to think He's serious if He showed up at a pistol range with a bunch of CCW students and popped off a few rounds from a Glock or a snubby revolver.
But fat chance of that happening, since He would plan on banning those if He gets his way..
People with half a brain aren't buying the whole expert marksman con He's been perpetrating.