It affects most people, but a lot of non-western women are pressured to look white and all sorts of other things. There's a lot less pressure on men, but there's a fair bit and it is increasing.
They aren't studies on biology and attractiveness. Just attractiveness. Read them again. You'd need to isolate environmental variables to get biology in the equation. They find trends in attractiveness, you then say it is biologically hard-wired. That latter claim requires evidence.
As I already said to you, human bias is involved in nearly everything. I'm well aware of the biases around IQ tests, but IQ tests aren't a bias in the first place.