thank you for pointing this out. I am reminded that in the British politiical tradition. or so it was until PC, smothered it, opponents were free to make loud noises and to interrupt others. Watch any debate in the House of Commons and one sees very "rude" behavior. Now the unstated rule is. however, is that there will; be exchanges: a mob cannot be allowed to shout down the speaker unless he has been given a chance but unable to respond effectively. Piling on IS allowed.
I dare say, SCOTUS has never issued any kind of decision that states: “legal protesters” SHALL behave in a “quiet and gentlemanly” way.