Comparing non-black women to black women is a false equivalence. The societal structures are different, the situations are different. Some women, particularly white women, can approach men comfortably because they've been conditioned that way. They watch movies and see women who look like them, they see women who look like them on the runway, etc. They have the luxury to be bold because they live in a world where everything is set to give them those luxuries. Black women aren't afforded the same privileges.
That's not to say everyone is blameless. I know a lot of girls that went through college not realizing that this would be the most eligible men they would ever be surrounded by. And then there's other girls who are looking for something serious, but the younger guys aren't ready to settle down yet. Then you factor in ages, location, dudes involved in criminal activity, men who are already taken, etc.
All I'm saying is that the issue is much more complex that people think it is. There's a lot of different things at play. A lot of black people, men and women, are feeling lost in the current dating landscape.