There are several things going on here.
1. Flag burning in the US matters as they are VERY right wing nation that worships the Nation State. They are also a nation that interferes in the affairs of every nation on Earth because... well... they can. As I said the other day, the US is responsible for over a million arab deaths since 9/11. If that is the path to peace with the Middle East, I would be surprised. If a country had killed a million Brits, I would probably burn their flag too.
2. I think they use the same chants over because... the internet. All the propaganda against Israel is coming from Israel right now. My God, the videos I have seen. The IDF strapping a wounded man to their bunker. The old ladies booted down staircases. The children smashed in the face with rifle butts. And that ignores the actual statistics and the videos of men carrying their dying children into ambulances.
You don't need intersectionality or extreme left-wing views to see all that and go... nahhhhh.
And they keep shouting at the golf when it should be a nice calm sport. Don't forget that one. Always riles me anyway. "IN THE HOLE" STFU you morons.