the reality is because they're easy. That's why. They worship white people, i mean look at their fiction, look at the way they try and look with their skin bleaching and every other surgery under the sun to emulate white features. They cope all the time about it not being the case, like how they say anime characters look like cats or something but it's crystal clear they look like white people. So of course, given that they worship white people, with the way the "dating market" is, a white man is much more likely to accept this flattery and easy nature of the bug women