Science fiction author John Scalzi puts this a lot better than I ever have:
At this point there is no doubt that Donald Trump is the single worst major party presidential candidate in living memory, almost certainly the worst since the Civil War, and arguably the worst in the history of this nation. He is boastful and ignorant and petty, disdainful of the Constitution, a racist and a sexist, the enabler of the worst elements of society, either the willing tool of, or the useful idiot for, Vladimir Putin, an admirer of despots, an insecure braggart, a sexual assaulter, a man who refuses to honor contracts, and a bore.
He is, in sum, just about the biggest asshole in all of the United States of America. He’s lucky that Syrian dictator Bashar Hafez al-Assad is out there keeping him from taking the global title, not that he wouldn’t try for that, too, should he become president. It’s appalling that he is the standard bearer for one of the two major political parties in the United States. It’s appalling that he is a candidate for the presidency at all.
But note well: Donald Trump is not a black swan, an unforeseen event erupting upon an unsuspecting Republican Party. He is the end result of conscious and deliberate choices by the GOP, going back decades, to demonize its opponents, to polarize and obstruct, to pursue policies that enfeeble the political weal and to yoke the bigot and the ignorant to their wagon and to drive them by dangling carrots that they only ever intended to feed to the rich. Trump’s road to the candidacy was laid down and paved by the Southern Strategy, by Lee Atwater and Newt Gingrich and Karl Rove, by Fox News and the Tea Party, and by the smirking cynicism of three generations of GOP operatives, who have been fracking the white middle and working classes for years, crushing their fortunes with their social and economic policies, never imagining it would cause an earthquake.
Well, surprise! Here’s Donald Trump. He is the actual and physical embodiment of every single thing the GOP has trained its base to want and to be over the last forty years — ignorant, bigoted and money-grubbing, disdainful of facts and frightened of everything because of it, an angry drunk buzzed off of wood-grain patriotism, threatening brown people and leering at women. He was planned. He was intended. He was expected. He was wanted.
But not, I think, in the exact form of Donald Trump. The GOP were busily genetically engineering the perfect host for their message, someone smooth and telegenic and possibly just ethnic enough to make people hesitant to point out the latent but real racism inherent in its social policies, while making the GOP’s white base feel like they were making a progressive choice, and with that person installed, further pursuing its agenda of slouching toward oligarchy, with just enough anti-abortion and pro-gun glitter tossed into the sky to distract the religious and the paranoid. Someone the GOP made. Someone they could control.
But they don’t control Trump, which they are currently learning to their great misery. And the reason the GOP doesn’t control Trump is that they no longer control their base. The GOP trained their base election cycle after election cycle to be disdainful of government and to mistrust authority, which ultimately is an odd thing for a political party whose very rationale for existence is rooted in the concept of governmental authority to do. The GOP created a monster, but the monster isn’t Trump. The monster is the GOP’s base. Trump is the guy who stole their monster from them, for his own purposes.
I can't add anything to that - Scalzi is exactly right - so I'll just repeat two sentences: "Donald Trump is not a black swan, an unforeseen event erupting upon an unsuspecting Republican Party. He is the end result of conscious and deliberate choices by the GOP, going back decades, to demonize its opponents, to polarize and obstruct, to pursue policies that enfeeble the political weal and to yoke the bigot and the ignorant to their wagon and to drive them by dangling carrots that they only ever intended to feed to the rich."
GOP policies and actions created their base, nurtured their base, and turned it into a monster deliberately. For decades, it's worked well for them. But the monster is proving to be harder and harder to control. That's the nature of monsters, I guess.
At this point, we can only hope that the monster destroys the Republican Party before the Republican Party destroys America. And maybe the next conservative party in our country can try to put America first. Political ambition is all well and good, but when you're willing to do anything to gain political power, you've got a problem.
Well, we've got a problem. And it's not just Donald Trump, though he's the embodiment of it right now. This monster isn't going away - not quietly, at least - no matter what happens in the election. Our actions live on long after we stop acting. What the Republican Party did to us isn't going to stop causing damage to America, not in the foreseeable future.
There's no easy fix, either. We did this to ourselves. If we'd been smarter people, better people, we would have repudiated the Republican Party's strategy decades ago. Instead, it kept working for them. It worked very well for them. And in many states, with many, many people, it's still working.
PS. My thanks to Jim Harris for the link.