I did the same. It's puzzling how some suggestions really comes up a lot. "racist" and "rude" seems very common. I get why "racist" would be so common, but "rude" odd. But maybe it tells something about how other people view a new country. I'm guessing that it is very easy to feel another nationality is rude, if you are traveling there and miss some/all of the subtleties of the culture. Or maybe it just tells us that people are easily precieved as rude.