Why don't black girls like white guys the way black guys like white girls

I've noticed this disparity and was just curious, even in same sex relationships Black women still aren't open to white people in general why is that? I even heard of black girls making fun of other black girls for liking white guys are they just racist?

I'd say partly because black women have been made to feel undesirable, although this is from both white and black people. However, there's an assumption among lots of black women that white guys wouldn't ever go for them, whereas it's relatively common for white girls to have a thing for black guys and vice versa. Saying all this, I'm mixed with a black mum and a white dad, so it's not impossible.

I've noticed this disparity and was just curious, even in same sex relationships Black women still aren't open to white people in general why is that? I even heard of black girls making fun of other black girls for liking white guys are they just racist?