You sure about those numbers? The differences here look starker than that:
www.pewresearch.org
Also I think it's entirely fair to say that MAGA has a general disdain for higher education, no matter how you want to frame it. The whole movement is built around resentment towards "elites" (by which they mean not rich people, but highly educated people - and especially, as you alluded to, highly educated people with a background in liberal arts and the "soft sciences" who have expertise in any particular subject matter). There are absolutely some highly educated people who are part of their coalition, but they are happy to cynically repeat the same critiques of higher education - and the highly educated - without acknowledging the benefit they received from their own education (or by using some sort of "to beat the enemy, I had to understand how he thinks" sort of logic).
If there is any general animating principle behind MAGA other than Trump worship, it is a disdain for educated coastal "elites" who use big fancy words, and the institutions where those people are educated that, as you note, they believe are indoctrinating their students with liberal ideology. Just listen to a monologue from the main character of any Taylor Sheridan show if you need a mission statement of why MAGA believes those people are the enemy and the "real Americans" are people who work with their hands and use 1- and 2-syllable words.