Race and gender.

White people feel threatened by Democrats' commitment to equality of outcome. Black and Latino voters may have moved toward Trump, but only because the ones so moving don't understand economics. He is not the answer to any of their problems, so we should not regard their choosing him as evidence of anything other than their wishful thinking.

Meanwhile, men feel themselves under attack, and the many women who are not feminists but actually like having men woo them and support and protect them and their children, are voting against the party of gender de-specialization. Feminists refuse to understand that most people benefit from gender roles, whatever the downsides may be for the others. That's why the traditionalists outvote the progressives.