This one’s tough. I can’t speak for all white men, but as a white guy who is attracted to black girls, I can say you’re plenty attractive, I’d be happy to go out with you. I think the issue might be you’re just not putting yourself in the right situations to make white guys comfortable approaching you. I don’t know what you do for work, but if you got a customer service job where you were in front of people all the time, you’d be beating off the white guys with a stick.
Another thing you might do is go to meetups. If you’re religious you can try going to a church where white people go.