We already know why.
A white man is perceived to be a winner in life because he's...well...white.
Whereas most will assume a white woman will probably get you clapped, lie and say you raped her when she gets annoyed, or racially abuse you. They also believe BM are more likely to be trash pickers when it comes to WW than BW are for WM.
This completely ignores how a white man would be just as likely to racially abuse a BW in the heat of the moment. Or beat on her. We know it happens a lot more than some people want to admit.
What can be said about white parents is they're usually on the same page when it comes to not wanting their child to fukk with anyone outside the race.
It also ignores how white men who are engaged in DV are usually protected in some instances either through their privilege or connections.
Ive heard stories about black women getting in a fight with their white husbands that the husband started...cops get called...and the black woman gets arrested instead of her white husband!!!
Or the cases of black women getting deleted by white men, and the investigation going on hold because that white man knows the police he knows the judges he knows the people that can make the case go away.
Bottom line...its risky to date and marry white people while being black.