Yes, this is absolutely true. If you notice, black girls have only become interested in white guys over the past 5 years or so. Before that, they wanted nothing to do with us. The reason for the change has been the huge proportion of black guys who have started dating non-black women almost exclusively. This is disappointing and somewhat infuriating to black women, because deep down they really don't have any desire to date white, Latino, or Asian guys.
What a question! Out of everyone I know, I can say your statement is true and false. I know girls that have gone "to the other side" (lol) solely because they wanted to make their black boyfriend jealous. I also know many, many black women who date white men because that's just their preference, and who they're attracted to.
I think black girls date white guys because they think they are more attractive. One of my best (girl) friends is black and she likes white guys. I don't know, she's just not into black guys. Maybe the "black culture" turns her off rather than the actual skin color?
People aren't bees mate. They don't have a hive mind. We got all different shit kicking about upstairs and different prerogatives. I'm telling you this template for living your life bullshit is recent. Fuckin ignore it. Everybody is an individual with individual tastes and motivations.