Agreed that "cult" is a very broad concept that can be applied to almost anything (for example, some movies are said to have a "cult following").
What's much more specific and easier to identify, though, is the cult of personality. Prior to Trump, that term could not have been ascribed to any US president, at least not during my lifetime. Cults of personality involving government leaders are usually fueled by propaganda, patriotism, rallies and an unwavering devotion to a leader who is viewed as exceptionally heroic and/or divinely appointed. They're common in autocracies and are sometimes seen in failed or failing democracies. Finally, the cultists don't perceive themselves as being in a cult and categorically reject that characterization.
For a deeper understanding on this, one might delve into the Rush Limbaugh Ditto Head phenomenon. This concept was argued many times over the years of his success and he always pushed back on the robot, cultist claim with - “these millions were already out there when I arrived, I just gave them a voice”.
Trump, in the same way, simply stood up and voiced many of the issues that 100 million Americans felt unheard of by both parties. It’s that simple. It’s never been an allegiance to a man or woman, the allegiance is held in ideals, something the Left seems to disregard and/or misunderstand when it comes to Conservatives, although they hold the same allegiance to their own set.
As much as the Left adheres to pro-choice, the Conservative believes in life as much or more.
As much as the Left hates borders, the Conservative believes they are of utmost importance.
As much as the Left believes that Gov is the answer, the Conservative wants limited Gov even more, and that it is the individual that is primary in the betterment of society.
As much as the Left despises America and the Flag, the Conservative believes in the American ideal and that it is exceptional in its offerings.
As much as the Left believes in defunding and berating the police, the Conservative wants law and order.
As much as the Left thinks there are an infinite amount of sexual identities, the Conservative believes there has always been two and will always be two.
As much as the Left lives in fear, the Conservative lives by faith, in themselves and someone higher that’s taking care of the things we can’t.
As much as the Left believes in interpreting the Constitution, the Conservative believes we should obey it.
As much as the Left believes America should surrender its autonomy to the Global agenda, the Conservative believes America should remain a leader and influencer on the global stage.
The Left has become warmongers, the Conservative only wants war if our sovereignty is threatened.
These go on forever, but hopefully this provides the gist.
Trump has many faults, as do you and I, and all who serve in public office, for that matter. But, we still vote for these same people. You choose yours, I choose mine, based on what? Their faults? No, I choose based on what they believe and what I believe they will do when they serve. Hopefully, you do the same.
The above always has to be restated to the Left because they never grasp the thought of steadfast principle, so I apologize in advance.