What absolutely proven revelation would it take for Trump cultists to abandon him?

Some thoughts prompted by what we are learning as previews of what's in the book "Peril" are revealed and what it would take for Trump cultists to abandon him:

* Absolute proof of what is in “Peril” plus that Trump actually took steps to start a war including a nuclear attack, to stay in office.

No way.

* Absolute proof Trump was severely mentally ill.

No way.

* Absolute proof Trump was a Russian agent.

No way.

* Absolute proof, like tapes, that Trump disdains members of his cult.

Close but no cigar. They would believe his claim that they were fake.

* Trump dies.

Hmmm. Got me on this one.

There would be those who believed the deep state kidnapped him and had him in hiding. However, this might be the only thing that it would take for his cultists to stop trying to get him elected again. Whether they would make him into a martyr and/or deify him remains to be seen.

I think Trump wannabe politicians would scramble to be the next Trump. He’d no longer be a threat so they could praise him to high Heaven without worrying they’d have to run against him.

My hunch is that his death would prompt violent protests from the far right but without him to egg his supporters on I don’t think this would last.

What do you think?