Rude by American standards.
Perhaps it’s OK from their own perspective…
I don’t argue values, but I sometimes mention the American point of view.
“In the US, it is not polite to call somebody fat.”
“In the US, it is impolite to ask someone how much money they make.”
Today we were speaking about world cuisines.
One man said that he does not like hot, spicy food.
A woman mocked him, “But you’re a MAN!”
I quickly changed the subject.
What a loaded topic.
I don’t have the words to address this issue.
And I’m fluent.