College whites and church whites are taught different moral values in their respective houses of learning, values which trickle up into policy preferences. Members of white Christian congregations are more likely than any other racial-religious group to rank personal responsibility above structural factors, such as unequal access to education, in explaining racial disparities in income. And while secular universities rarely purport to give moral teachings to their students, research has found that college education increases tolerance.Tolerance... presented as the other side of the spectrum from personal responsibility. Anyway, that's Theory #1. Theory #2 is:
[C]ollege whites and church whites disagree not only on value judgments but on empirical claims about the world...Theory #3 is "Different bubbles. The flip side of Theory No. 2":
[B]oth college whites and church whites exist in ideologically pure bubbles, where like-minded friends uncritically reinforce each other’s beliefs...Theory #2 appeals to college whites, and Theory #3 appeals to church whites "or at least the conservative public figures who represent them:
... Rick Santorum once referred to universities as “indoctrination mills” lacking in “intellectual diversity”; Antonin Scalia lamented that the Supreme Court was composed entirely of “successful lawyers who studied at Harvard or Yale Law School”; Marco Rubio described “the political class” and “the mainstream media that covers them” as “out of touch with the American people.”All the theories are true to some extent, and the polls do show a big "college white" skewing to Hillary and "church white" skewing to Trump. It's a reality in need of an explanation, and I'd say the 3 explanations cover it in a more or less polite and respectful way.
The rude and disrespectful people will easily generate additional theories: The people on the other side are dumber/crueler/selfish/racist — college/church will do that to you.