The reason that half white people tend to date non white people all boils down to acceptance. White people made the one drop rule, which also extended to Asians one point. The white race has effectively killed off potential suitors and would be children, who would have been born white due to fear that the kid could possibly come out as "other". Genes get diluted over time, but re-purify in the 3rd generation ..
EX: Half white/ black women(1st generation of mixed heritage) + with white man= kids are 3/4 white(2nd generation), then those 3/4 white kids with white partners= FULL WHITE KIDS (3rd generation).
But many white people do not even want to date another white person who had sex with a member of a different race, much less a child by one. Which is why, when I see Black men with white women I get SOOO HAPPY and pray they knock them up every time. Even if they break up her only option is it be with other men of color. A race is not destroyed by who then men take to bed, but rather who the women reproduce with : )
If they truly wanted to kill off Black people, they should have been knocking up every Black woman in eye's view. ALA. Argentina, where the Black people have LITERALLY been breed out. In Argentina a slave woman would be allowed her freedom if she gave birth to a half caste child. BUT America has did us all a favor and for that hatred and stupidity on their part we are HERE and growing.