Bambina, you're very brave in posting this topic and I applaud you. On some sites, you probably would have received pretty scathing messages by now.
To a certain extent, I understand how you feel. I'm a black female and I've never served a black Dom. It wasn't anything I could quite put my finger on, but I've always been drawn to men of other races. I hope my preference doesn't fall under discrimination as that's not my intention. As you stated, sometimes being with the same race is boring or so ordinary.
I am offended when I'm approached by anyone using ebonics regardless of their race. Don't "dumb down" or use street language because I'm black. I rarely give a second chance to make a first impression. *smile