Rational Nation USA has a post up on this article in The New Yorker by David Denby
The last paragraph of the article perfectly sums up Trump and why he's been so effective with the people who support him:
He lies all the time. But pointing out his lies, his contradictions, his illogical ideas, his nonsensical solutions—pointing out all of that, while noble and necessary work, is partly beside the point.
Trump’s entire world picture, as he presents it to his voters, is an elaborate fiction—coherent in itself, like all such extreme fantasies, and therefore emotionally satisfying, but never required, either by Trump or by his audience, to meet the test of factuality and actuality. When he says that the country is in “terrible shape,” his listeners need only feel that their own situation is terrible to agree with him.
In a similar way, the harrumphing attacks on him by such establishment Republicans as Jeb Bush, Tom Ridge, and Dick Cheney also miss the point. Those men are appealing to some common standard of allowable political discourse that Trump and his followers consider mere evasion. The movement’s standard of allowable behavior has been formed by popular culture—by standup comedy and, recently, by reality TV and by the snarking, trolling habits of the Internet.
You can’t effectively say that Donald Trump is vulgar, sensational, and buffoonish when it’s exactly vulgar sensationalism and buffoonery that his audience is buying. Donald Trump has been produced by America, but I refuse to say, as some have, that he’s the demagogue that we deserve.
He’s the demagogue the Republican Party deserves. The rest of us, including some Republicans, will resist him by holding on to whatever humanity and common sense we can command.
If Trump has "opened the windows" as some people believe, he's opened them to let out his toxic fumes of bigotry, racism, sexism, nativism, and all the other isms to stink up and pollute the common values our Founding Fathers gifted us in the Constitution.
The angry, unhappy people who support him mistake vulgarity for plain speaking and bombastic bigotry for making America great again. The only good thing that has come out of his deplorable candidacy is that we now know how many of his supporters there are who would sell out the ideals and values this country stands for for the cheap thrill of having a loud-mouth, short-fingered vulgarian speak for them.