Yes but if there are no Koreans around (or if he's more handsome than the Koreans around) then his chances are nearly equal.
It's like, let's say, those Chinese guys who dream for a blond, white West European girl. They'll think (wish) for some from Sweden, France or Britain but when there isn't they're accepting willingly similar white girls from poor East European countries like Ukraine or Belarus.
Only the very hardcore fans will say "Korean or nothing.", "Swedish or nothing." and so on. Most of the people, usually, are ready to make a compromise especially if the person is more attractive (in something; not only about his/her looks).