There's nothing wrong with having quiet-hours laws and enforcing them. The problem is when the criticism is framed in terms of groups by ethnic or national identity. Either the violations should be enforced, as with any other rule/law, or perhaps there could be some kind of policy change. All of that is worth talking about. My objection is to the idea that its appropriate to frame the problem in essentializing and racialized language. Suppose I have a dispute with my Jewish neighbor. He loves to grill his kosher meat every Saturday with his family. I don't like the smell. Here is one way to frame this dispute: "My neighbor has a custom of grilling meat on Saturdays, but I don't like it because the smell wafts into my house and I'm vegan." Here is another "My JEW neighbor grills his JEW meat every Saturday because Jewish culture is just murderous and doesn't care about animals like I and my culture do. He is such a piece of shit asshole, just like all of THOSE people."

Which one sounds like a fair way to frame a discussion about a conflict between two people? Now obviously your initial comment didn't say anything overtly racist like in my example, which is very extreme. But you framed it as a conflict between some anomalous THEM and the 'local' culture, a.k.a., US. The problem is subtler, but its the same problem.