What's the alternative, without knowing exacly what obscure city-block someone comes from?
Er, that would be Asian. That's hardly an obscure term.
Yet Asia is massive. It encompasses the middle east, the Indian sub continent and the Orient or more simply everything between the Bering Sea and the Ural Mountains.
So are you proposing that the Orient Express should be renamed as not to offend a small, maybe even fictional minority, or say in a supermarket where there are foods from multiple areas of Asia, it shouldn't have "Indian," "Thai" and "Oriental" but just Asia? That just seems stupid.