My answer to that is: Be careful what you wish for. If he were to fall, he would become more powerful than you can possibly imagine.
The Romans thought they could kill off a cult by killing Jesus... You may snicker, but Trump has replaced Jesus in churches throughout the country as their true Messiah, even if they won't say that quiet part out loud quite yet.
You won't kill the cult off simply by him dying.
Heck, look how many years it took for Elvis sightings to wane. Elvis was being spotted and worshiped for a good 10-15 years after his death. Wouldn't have happened if he'd just been an old, fat druggie for the next ten years instead. THEN you'd have had people talking about how much he sucked, although he had been pretty good once.
Y'all really don't want Trump to die. Y'all want him to lose.
Lose, lose, and keep losing more and more, until his name has become as synonymous with losing as Rimbo has become with Greg Davis Defenders. He won't have a cult, because nobody wants to join the Cult of Loser.
Jail won't end him. Death won't end him. Losing will. Losing court cases. Losing his marbles. Losing the election. Dragging the GOP down with him.