Donald Trump is no saint yet, certainly; but he has the curious quality that many saints have, of revealing serious hatred problems deep in people’s hearts, even when those people have always seemed good or normal. Some of these “good” people go stark raving mad when exposed to someone sweet, kind, and gentle, possibly because they suddenly feel inferior somehow, or feel disturbed in their view of what is possible for a human to do and be.
Trump Derangement Syndrome has a similar quality, where something innocuous or funny done by Trump suddenly works like splashing holy water on a vampire, shrieks and all. I have seen it with a member of my own family, and still don’t understand it.