Good stuff. He’s just stating his opinion, not harassing people or being pugnacious, just showing his feelings. That’s the First Amendment in action right there.
Also, big points to the LA cops here . . . Just keeping one party from hurting the other, but remaining neutral. That’s how police should handle themselves in instances like these. (Well . . . except when Fred Phelps is making an appearance. Then they should step back and let him get beaten up a bit).