Attraction is an individual thing. You can't generalise for a whole ethinicity. Some like white girls, some like black girls, some like Asian girls, some like Asian guys! It's all relative to the person
To be fair, my Mexican boyfriend admitted to me that he always had a thing for fair skinned blonde girls with light coloured eyes, Eastern European type. And it was one of the reasons he was attracted to me. He did mention this as a fairly general trait as well, but I am sure that while it may be widespread, it's not a general thing.