Look at the political association of the vast, vast majority of college professors and administrators. There is very little heterogeneity (wow, look! A conservative with polysyllabic capability!) on most college campuses, and depending on the field of "study" (should that read field of indoctrination?) there is essentially zero diverse viewpoints taught in classrooms.Most college graduates used to lean Right. Why the change? And I'm not asking rhetorically. I think it's an interesting issue to ponder.
Lots of diverse skin tones, lots of diverse genders, lots of other diverse trivial human characteristics, but no diverse thought.