3. Most left-wing positions are emotion-based. That’s a major reason people who hold leftist views will sever relations with people they previously cared for or even loved. Their emotions (in this case, irrational fear and hatred) simply overwhelm them.
4. Since Karl Marx, leftists have loved ideas more than people. All Trump voters who have been cut off by children, in-laws, and lifelong friends now know how true that is.
5. People on the right think that most people on the left are wrong; people on the left think that most people on the right are evil. Decades of labeling conservative positions as “hateful” and labeling conservative individuals as “sexist,” “intolerant,” “xenophobic,” “homophobic,” “racist,” and “bigoted” have had their desired effect.
6. The Left associates human decency not so much with personal integrity as with having correct — i.e. progressive — political positions. Therefore, if you don’t hold progressive positions, you lack decency. Ask your left-wing friends if they’d rather their high-school son or daughter cheat on tests or support Trump.