The fact that people think that can't be done is in itself racist, don't you think?
Is "White" my origin? Nope...I'm Irish. But I don't get offended by being called "White", a "Mick", or a "Paddy". Nor do I get offended when people stereotype the Irish when they say Irish people are short tempered, are alchoholics, or have small genetalia. So are you implying that "white" people can't be racially offended?