It’s no secret that Trump’s supporters are very fickle in their political positions. Here are just a few typical examples:
1. Free trade. They used to be for it, now they’re against it. Why? Because Trump said so.
2. NATO. They used to be for it, now they’re against it. Why? Because Trump said so.
3. Marital fidelity. They used to think it was essential for a leader, now they think it just doesn’t matter. Why? Trump’s example.
4. Respect for authorities. They used to idolize John McCain, George W Bush and Mitt Romney. Now they see them as losers. They used to look up to institutions like the FBI, the CIA, the military intelligence agencies, the Homeland Security Department, etc., now they think all those agencies are conspiring together I support of a godless liberal new world order. Why? Trump, Trump, and more Trump.
There are numerous other examples.
In other words, they are willing to give up just about any position they hold if it differs from that of their leader, Donald J. Trump. The Great Orange Leader has become the be all and end all of their worldview because they see him as the embodiment of the highest aspirations of the American people. Every thought and every moral scruple must surrender to the light of Trump.
In Germany, this leadership principle was called Führerprinzip. According to Geoffrey Megargee Senior Applied Research Scholar with the Center for Advanced Holocaust Studies: “Hitler was, first and foremost, determined to command personally. According to his so-called Leader Principle (Führerprinzip), ultimate authority rested with him and extended downward.”
The Wikipedia article on Führerprinzip says:
The Führerprinzip was not invented by the Nazis. Hermann Graf Keyserling, an ethnically German philosopher from Estonia, was the first to use the term Führerprinzip. One of Keyserling's central claims was that certain "gifted individuals" were "born to rule" on the basis of Social Darwinism.
The ideology of the Führerprinzip sees each organization as a hierarchy of leaders, where every leader (Führer, in German) has absolute responsibility in his own area, demands absolute obedience from those below him and answers only to his superiors. This required obedience and loyalty even over concerns of right and wrong The supreme leader, Adolf Hitler, answered to God and the German people. Italian philosopher Giorgio Agamben has argued that Hitler saw himself as an incarnation of auctoritas, and as the living law or highest law itself, effectively combining in his persona executive power, judicial power and legislative power. After the campaign against the alleged Röhm Putsch, Hitler declared: "in this hour, I was responsible for the fate of the German nation and was therefore the supreme judge of the German people!"
Academics can debate whether or not Trumpism qualifies as fascism but one thing that’s crystal clear is that this central principle (possibly the only principle) of Trumpism is identical with the central principle of Nazism.