I've dated all ethnicities. I really truly Don't have a preference. That's pretty unfair to say another woman from a different culture won't have your back. I'm not shortsighted and refuse to limit my potential dating pool. I see it more on the Coast wise I see it more on the East Coast. West Coast its pretty normal.
My longest relationships were with a Trinidadian woman (Venezuelan, African, French) and a Russian.
I dated a black girl when I was in high school *shrugs*