In a bm/ww union - the PAWG is with the black man because she loves black men.
Black men create more biracial kids than black women. The son takes after the father. A father raises his son.
It's just easier on a boy's identity when his father is black. And if its a daughter the mother-PAWG has already
established a love of black men within the household. Where there is love for black men hate cannot exist.
In a bw/wm union - the BW is with the WM because she hates black men.
Their bond is formed over this mutual hatred. That hate for black men is sewn into the family structure.
A biracial daughter is exempt from the brunt end of this hatred because she isn't a proxy for the black man.
(Unless she dare date / marry a black man) A biracial (phenotypically black) son is not exempt and if he is to have
any identity and self-worth at all it is developed at odds with his family structure.
The biracial daughter never needs to develop this identity in the way that the son does.
So you see when you come across a

biracial female you can usually tell her family structure and who her parents are.
Knowledge, Peace, and Blessings unto you.