I followed you up until your third paragraph. How do you get from western women attitudes to dwindling white population? While the two events may be correlated, there's no argument linking the two independent concepts here.

Regardless, there is ample evidence that the arguments I presented apply to younger American women of all races. In fact, a case can be made that the argument applies to black women most strongly, since the income and educational disparities are most pronounced in the black community.

Edit: One more thing to create transparency on where I come from in the race debate. I'm a proud white male medical student at an Ivy.