I notice that a lot of black music totally denigrates black women and just women in general actually. (It's something I've said on this site before). I don't know if this might be more of an American culture thing or not. Black men are unfairly treated in society, but it's almost like they've got to have someone lower down the pecking order than they are to pass the hate on to. These are just my generalized perceptions of pop-culture though.
Although such music exists and has an audience, I tried googling and was unsuccessful in finding any estimate about how broadly consumed that music is, nor any demographics about race (e.g. are black youth any more or less likely to listen to music with sexist lyrics than white youth).
I live in a very white town, even though it's a lot less white than it was 8 years ago. I think the majority of the black men here do work in the local hospital, but I think it would be weird if I tried to conduct a survey to find out what colour their wives were.
Could there not also be a simpler explanation if there is a phenomena where black men marry white women and vice versa? Mixed race children are more likely to be taller, more intelligent, less likely to have inherited genetic diseases etc. For the purpose of passing on your genes it makes sense for the parents to be genetically diverse. Perhaps people have evolved with the instinct to choose a partner who is simply not likely to be a genetic relative.
That wouldn't explain discrepancies on the basis of gender (if as a species we're increasingly selecting partners based on optimal immune system outcomes, Black F / White M pairings should be as common as Black M white F pairings, but they are very different).
When we're talking about the behavior of groups of people rather than specific individuals, I think it makes the most sense to take it for granted that race and culture are both relevant to the statistics.
The relevance of culture can be seen pretty clearly in interracial marriage statistics among native born -vs- foreign born persons of color. The odds of an Asian or Hispanic American marrying a member of another race are twice as high if they were born in the USA as compared to being born elsewhere and moving here. The same legal freedom exists in both cases, the same benefits for offspring are there, but culturally, people born and raised in the US are more open to marrying someone of another race than people raised abroad.
I don't think an abstract value is assigned in the way LGX depicts. Rather, I think culturally, the preconceptions that black men have about white women are less likely to preclude them from being considered as a partner than the preconceptions that white men have about black women. Speaking in general terms, I think men have a preference for passive/submissive women and the
preconceptions are that Black women are less likely to have those qualities than white women and Asian women are more likely to have them.
You can see those preconceptions at play in some of the threads that scroll through here. I know you've seen Sangheili's threads waxing poetic about the virtues of Hispanic women because he considers them to be more likely to respect his authoritah than entitled white women.