Coming in with those vests implies you are militia. Camo and black emphasizes the military, “we’re here to hurt you” feel.
Covering your entire face with a Buff and a baseball hat and not just your mouth and nose certainly is shifty and suggests you don’t want to be identified. You’re so confident about your cause in a free country, why are you hiding your identity? You have the right to protest, don’t you?
Covering everything from your ears down and shaving to a mohawk is just weird. Reminds me of my uni’s Frisbee team when they went on spring break (every guy made a great attempt at looking like a pervert from the 70’s, many of them shaved half of their creeper mustaches, etc.)
The US flag of the guy on the left makes a tad more sense than a confederate flag, as it was a US flag once, but it ain’t 1776, and I’m not entirely sure the message he’s trying to send. Guns aren’t exactly a sign of peace. I think I see a “don’t tread on me” patch. That’s pretty clearly anti-government, though I don’t think it implies terrorism necessarily.
A drum circle would annoy me, but this would scare me sh**less. There’s a very different message being sent than most “peaceful” protests I’ve seen in my lifetime.