This is has been significantly overstated my entire life - people making this claim always point to the women’s studies faculty and don’t mention how many engineering, Econ, law, etc. faculty are more conservative — but it more deeply misses the cause, as well. As the Republican Party purged internal dissent, that pushed people out who might have otherwise been on board for things like their fiscal or foreign policy positions but weren’t willing to say gay people were less than fully human or rejected the war on science. That last one is huge for universities because for most of the current century being a Republican has required rejecting the scientific consensus on climate change, the most pressing issue of our time, as well as other topics like public health or the separation of church and state. Criticizing universities for not having more people who reject their foundational principles is badly missing the point.

I used to know a Republican lobbyist who worked on environmental issues. He used to represent the coalition of fishers, hunters, hikers, bird-watchers, etc. who valued healthy forests, water, etc. but that line of work disappeared when they put out the fatwa against giving Obama any legislative wins even on issues which have broad public support and it never really came back because the party leadership decide that they represented industry first and only. Those people didn’t suddenly become liberals, the party moved away from them.