Haha, you nailed it. I have had the same experience with Western women in China. They give us angry look for dating Chinese girls, one even called me a traitor, the same women are probably jumping onto Black poles back home but for some reason can't stand the sight of White men with non-White women, were they Asian, Black or else.

Now I love women as a whole, White, Asian, Black, Arab, Latin, ... I love them all, but as you said the choice is rather limited in China and we have a thousand more chances to end up with Chinese chicks than White ladies. I think if I would live in let's say Nigeria my other half would be Black, it's that simple.