What is wrong with these Americans?

Spent a week in Punta Cana recently(Secrets) and honestly as an European im baffled by the way Americans act around here.

Very loud, very rude, and they think they own everything and everyone because they might have a bit of money?

Putting music on speakers and blasting all over the pool resort(its not even good music) shouting cringe shit all the time at each other without self awarness and respecting others.

ive never met cornier people in my life. Asked 2-3 of the waiters about this and if i was just being picky but they said the same.