it'll completely ruin it for liberal white women, because then there would never be any liberatory reason to have a white woman president ever in the future either. so they would be clapping, but they would be fuming about being "skipped" and unable to say anything about it publicly. and if a white lady did ever did win after, it would be lumped in with all the other ciswhite political wins... aka, not anything to brag about.
ps - this is a bit that i stole/mangled, but i makes me laugh.