Everyone has their own motivations.Where I am in Australia, there aren't that many black guys, so there is not much sense of being bred out. Still, i know women here who love it black, and some who are black only. And my first wife went of a black fucking binge in Tokyo, which is definitely not black dominated. I liked that, but i never saw it in terms of this ethnomasochism you describe. It was just exotic spice added to my cuckold tendencies.