>>15492872Because girls are genetically closer to their father than sons are.
Girls inherit their father's X chromosome which contains a lot more genetic information than the Y chromosome.
So yeah in a WMAF couples, female offsprings will look more attractive because they will have slightly more white features than male offspring.
Add this to the fact that Asians have on average rounder faces which give them a more neotenic look, and that we perceive neoteny as being attractive in females only. Female offsprings will therefore take advantage of this Asian feature whereas male will look like weak basedboys