David Frum, normally a moderate, offers an intelligent and honest assessment of recent events, including the not-so-mysterious rise of Donald Trump, in this article in the Atlantic Steve Sailer made me aware of, viz.:
The angriest and most pessimistic people in America are the people we used to call Middle Americans. Middle-class and middle-aged; not rich and not poor; people who are irked when asked to press 1 for English, and who wonder how white male became an accusation rather than a description.
You can measure their pessimism in polls that ask about their expectations for their lives—and for those of their children. On both counts, whites without a college degree express the bleakest view. You can see the effects of their despair in the new statistics describing horrifying rates of suicide and substance-abuse fatality among this same group, in middle age.
White Middle Americans express heavy mistrust of every institution in American society: not only government, but corporations, unions, even the political party they typically vote for—the Republican Party of Romney, Ryan, and McConnell, which they despise as a sad crew of weaklings and sellouts. They are pissed off. And when Donald Trump came along, they were the people who told the pollsters, “That’s my guy.”
They aren’t necessarily superconservative. They often don’t think in ideological terms at all. But they do strongly feel that life in this country used to be better for people like them—and they want that older country back.