They clash. You either have a meritocracy or diversity quotas; you either choose people because they’re competent or because they are of a certain sex/race.
The people pushing this radical view on diversity and equality tend to paint all people they see as marginalized as unable to compete on a level playing field.
This has always bothered me. Interviews for technology related roles are almost always an assessment of innate cognitive ability, something that has no real correlation with race or gender. The idea that certain groups might be disadvantaged here and require help is especially insulting.