There's 3000+ postsecondary institutions in the US. If they were all he11 bent on indoctrination the GOP would be competing with Jill Stein and Ralph Nader...
One of my kids prof was a curious mix, Cuban and Iranian. Had both flags in her office. Never once brought politics into discussion.
That's how it works. The right wing press finds some Mickey Mouse reason to roast education because some fringe prof decides to do this or that. So, the prof automatically becomes all of academia.
Knowledge is created and spread if we're willing to think outside the box. Regardless of subject.
Ummm... do you read Reason.com? They are Left-wing. Openly. Anti-Trump. Anti-Religion. Anti-Conservative. They just live up to the liberal idea of Freedom of Speech.
Spend some time on there before you jump to conclusions that are definitely inaccurate.
I had an Egyptian professor who demanded that all students agree that holding a door for someone is hateful, that being white is racist, and a number of other horribly ignorant things. Had a self-avowed Communist as an Econ Professor, who taught Communism instead of Economics. In a county that is 90% Republican by voting metric lol. Problem is that kids usually are weak willed, and refuse to oppose the strongest personality in the room. Usually, due to the nature of school, the teacher has the strongest, most authoritative posture.
Probably the closest thing to a "Conservative" view I saw from faculty was a very liberal, atheist Philosophy Professor. He was liberal, but damn if he wasn't opposed to Moral Relativism.
I've never been in a class where either the professor, or the class, was even remotely moderate, let alone Conservative. In an extremely Conservative area. My sisters graduated different Universities, and both of them had the same experience--sadly neither's brains survived the indoctrination so having a discussion with them is immediately a scream-fest or "You're a Nazi!". They went in with some basic understanding of logic, but when they left, it was gone. Hollow heads.
Now if you look at those links not only do we have a pattern... we have large organizations like MLA, where they are getting together not to discuss the teaching of English or English Lit, but environmental social justice... this is widespread. It is a cancer.