https://www.insidehighered.com/views/2020/10/23/divide-between-those-and-without-degrees-hurts-higher-education-and-country-opinion

America is divided by race, gender and geography. None of that is new. What’s new is division by education: a college divide.

One element of the college divide is hostility to higher education itself; the percentage of self-identified Republicans who say higher education has a negative effect on the country went from 37 percent in 2015 to 59 percent in 2019.

College graduates are being painted as elites principally because the vast majority of students who successfully complete four-plus years of college at the vast majority of institutions have the financial resources, family stability and support that are characteristic of top quartile (if not top decile) households.