These are profound insights. Here are some thoughts that might supplement your article (not contradict it).

Almost all people see politics as a means to enforce affiliation — to protect one’s membership in a particular circle and to punish outsiders, who are thought of as a threat, even if the outsiders aren’t attacking the circle. Usually when we think about rational self interest, we look at choices that benefit one’s well-being (health, safety, etc.). Now it’s true that people often make irrational decisions (that third helping of pecan pie or a kamikaze bombing mission), but that’s because something seems more important to them than their well-being. That’s why many poor and middle class whites will forgo affordable medical insurance (e.g. Medicaid expansion, which costs states nothing) if it means depriving people outside the circle (i.e. those with different skin color) of access to healthcare.

Why would white (97% of female African-Americans voted for Clinton) women (and this includes non-Christians and the college-educated) support an anti-woman, anti-family regime (not just Trump; the Republicans began their war on women and defense of rape before 2015)? It’s because these Republican women define their identity primarily in terms of race and/or class and/or geography rather than gender, and they feel that programs that would help them in terms of their well-being and the well-being of their children are threats to that identity.