...and why is this important?
Because Trumpians may be a cult, but what you don't understand, is behind it, is christofascism, the modern western continuation of fascism. The Nazis and the neonazis. Sanctified under a god that is uniquely theirs, and theirs alone.
To most modern Americans the president is almost a diety. But to a christofascist, god is the only diety. That god can be seen in anyine and anything they want to.
Trump is an expendable tool. More than you and he realises.