This reminds me of when I went to Japan earlier this year. I was waiting for a friend at the train station, and suddenly these bums come at me. One of them asks me where I'm from. Now I'm from the Middle East, but I live in Canada, and since they probably won't understand where I'm from even if I told them, I just said Canada.
Well, one of them starts shouting "no, no Bangladesh, Bangladesh, hahah". Now, that didn't really bother me (especially since they're just bums), but if I did have Canadian citizenship, it would start annoying me if people wouldn't believe me because they think all Canadians are white.
But Japanese are ignorant. I have a swiss friend whose English sucks big time teaching English there. He's white, so he must speak good English, right?