White girls don't like me?

I'm a white dude and I know I don't look like brad Pitt or anything but I'm by no means ugly. That's not the problem I have though. The only girls who show interest in me are black and Spanish chicks. I'm not racist or a white supremacist but I'm only interested in white girls but they never seem to be interested in me. Is there something that they dont like about guys that black and spanish girls do like that could be the reason why this happens?