I don't think Trump's approach to politics is the same as most politicians. Yes, I agree that most politicians are more self-interested, more interested in power, and more narcissistic than the average person, but because one rapist wears pants does not mean that all men wearing pants are rapists.
My personal belief is that Trump has tapped into something very fundamental in society by appealing to Authoritaians. As our society becomes more researched and better understood, advertising can target finer and finer divisions between people. Trump has done that like no other politician in recent memory, excluding H!tler.
Consider that Trump has been married and divorced, he pays and pays off prostitutes, he doesn't know anything about the Bible and doesn't attend church, but he's praised by Fundamentalists as being the next prophet. How can this be?
It's because Fundamentalists are also Authoritarians, and they recognize one of their own. A valuable thing to do would be to read up on the Authoritarian mindset, because they exist in every society and they are not comfortable living in a liberal democracy. They want a strong ruler to rule over them.
https://psmag.com/news/authoritarian...trump-triggers
https://drive.google.com/file/d/0Bxx...1hVFFRUDg/view
https://www.karenstenner.com/