This was a great read!
I've seen the data too that bw/wm relationships last longer. I am glad you put all the data out there to show that overall, mixed marriages do not last, but that black women and white men tend to.
My unpopular opinion is this: When Black men choose white women it is because they were told never to touch them. Yes, it is the 21st century now, but some black men run around saying white women are more pretty and better while putting down Black women, and some white women are gassed up and buoyed by this. Therefore, those relationships are not based on anything pure and good. It is based on lust and hate; marriages built on that kind of foundation never last.
This is not to say that any Black person can't be superficial-- I'm simply stating that thousands of videos online by Black men doing commentaries on "how bad black women are" is proof that they are not marriage material. Not all. Just some of them. I am not being general in any way.