Do you have scientific evidence to prove this??
Bear with me now...for we shall dive into the darkness---The Kardashian sextape? How a woman with no talent and a fake booty (that emulated black women) is known for only that became famous overnight, and his she primarily only dated black men, and so the legend was born. And the line up of black men who would then date her, thus promoting thru the media that promiscuous white women and black men were a match made in the USA. Also, including that allegedly her mother sex up the sex tape (no real fact), and that her her sister is married to a black man, and alleged rumors of her mother messing around with OJ (no real fact). And that the Kardashian Patriarch, was on OJ's legal team. OJ, who is an athlete, and married to a white woman (Nicole Brown), and was abusive and possessive of said white woman, and got off for killing said white woman and her white boyfriend. Let's not forget that OJ as a black athlete represents the stereotypical "physical prowess" of black males, and Kim Kardashian dated primarily black athletes, and then rappers. Hip hop also represents the bad boy, and "negro music" (we can go on and on with this).
Besides all of that, there is no real scientific proof that I am aware of. Yet, it does seem that black folk and miscegenation are used a tool by progressives.