Obviously, not all college graduates are good people; of course there is no guarantee that higher education carries virtue along with it.
Yet there is clearly a strong correlation. There is a reason (perhaps many reasons) that Donald Trump does particularly well with people in states that are at the bottom of the rankings in terms of education. He got 65% of the vote in Alabama and 36% in Massachusetts. Trump’s platform? White nationalism, mass deportation, punishing the poor, tax cuts for billionaires, anti-environmentalism, support for the world’s tyrants, and the rejection of science. That’s not exactly virtue, is it?