I think a certain amount of these interracial relationships stem from the fact that women, in many ways, perpetuate the misogynistic ideas that they are naive and easily swayed this way or that by others.
That is, athletes are high-profile people, highly-paid and in the spotlight, therefore women of all races skank it up bigtime by throwing themselves at these athletes, whatever their race.
Does anyone doubt that a nice, clean-cut Whiteboy like Christophe Lemaitre couldn't score some primo tail now that he's gotten some press?
Manny Pacquiao, no beauty queen but a major sports superstar, could probably take his skinny 5'7" self and have his pick of any in a bevy of the most beautiful, stupid White tramps that follow such stars around. Or black tramps, asian tramps.
Point is, they're tramps.
Now, why are they tramps? Because many women are easily manipulated, even moreso than male DWFs. Who manipulates them?
The men who control the media. They hype of the stars, make them rich (and themselves richer, of course), build an aura of money and virility around them -- not that they aren't masculine, but it's exaggerated to a point of ludicrousness.
White athletes certainly have their share of hoes that skeeve themselves off at every opportunity, the difference is probably that Whites moderate their behavior a bit better, or are better at hiding their affairs, or that since Black athletes are constantly shoved in our faces the degree of miscegenation is made to seem greater than it is.
Again, not that miscegenation isn't a problem, but truth is, I see a lot more hot white girls with white guys, than with guys of other races. It's just more noticeable if it's a pretty white girl with some guy of another race.
Such a waste, but then again, good riddance?
Once you go Black, please stay over there, and keep your STDs wit'cha.