I have what may be a little insight about one of the reasons for Trump's popularity with the right.
It's related to what was identified a few years ago as people who became addicted to high risk extreme sports like sky diving and cliff jumping. They all said it was a rush. In essence, they had become adrenaline junkies.
Well, as talk radio really started to take off in the aftermath of Bill Clinton's election in late 1992, almost overnight talk radio changed from being supportive of so-called conservative principles into a medium that trafficked into what could best be described as an auditory fix of daily outrage about this, or that, or the other. Of course, some of the stories were legitimate. But by and large, most of the stories were either exaggerations or downright nonsense. But it didn't matter because as anyone who remembers seeing or hearing something that is genuinely outrageous (like seeing a parent lose his or her temper in public and then repeatedly strike a small child), outrage is something that can draw you in and consume both your mind and your emotions at the same time. So, it was quite effective in helping to increase ratings, sell products, and make radio hosts rich, famous, and influential.
Before long, people calling into the radio shows were getting into the act. And just as naturally, politicians jumped on the bandwagon too. However, it's not as if politicians hadn't trafficked in outrage (often faux outrage, to be perfectly honest) in the past; both democrats and republicans did it regularly. But it was usually done in a dispassionate way which was meant to project an aura of an intellectual policy disagreement as opposed to an emotional one. Now, the emotional aspect was amplified into an anger that was frequently irrational if not manufactured. And do you know what? The conservative base simply loved it. They ate it up. The behavior seemed to break new ground while also overturning longstanding public decorum when Rep. Joe Wilson yelled, "You lie" to president Obama during a speech to a joint session of Congress in 2009. In the past, such a breach of Congressional decorum might have resulted in an unofficial public shaming. Those days were apparently long over because Walsh received kudos from the base and contributions to his reelection campaign poured in. In fact, the conservative base loved their emotional outrage fix so much that they eventually turned on their own representatives in a way that seemed eerily similar to what happened during the French revolution when the revolutionaries like Robespierre found themselves walking to the guillotine much like the royalty he'd previously sent there himself.
Having said all that, presidential elections seemed to be above the fray. That's not to say that misleading ads and hardball political games weren't employed by both sides; they certainly were. But as a general rule, the contests maintained a certain level of civility which had disappeared from many other parts of society. All by himself, Trump changed that, virtually overnight. As a TV showman, he had a flair for the dramatic, to be sure. But it was Trump's complete lack of scruples for respectful public behavior and his seeming inability to feel a sense of shame for bounding over the lines of common decency which seemed to capture the hearts of the conservative base. After years of feeding off the outrage of talk radio, perhaps that's not surprising. However, it IS ironic considering that the conservative base has always touting their high standards regarding morality and good behavior.