Personally, I think JRM is pretty straight, remarkably so for a modern politician. Having accepted cabinet posts from Johnson, he was bound by the principle of joint responsibility and behaved accordingly. He accepted the 'whip' and supported the party when called upon.
He has no time for Sunak which is why he supported Johnson and Truss before him. He knows a globalist when he sees one, which is why Sunak ditched him at the first opportunity.
He was badly let down by Johnson who 'hung him out to dry' at the weekend.
JRM wasn't so bothered about the "principle of joint responsibility", when David Cameron was PM.
I listened to the conservative member on LBC, who claimed that Sunak is a "globalist", with Indian heritage who doesn't love England the way Johnson does. Totally oblivious to the fact that Johnson was born in New York and only gave up his United States citizenship when he had a chance to become PM.
Sunak was very pro-Brexit, but for the reason that he sees Europe as less of a future player than the Far East, the U.S. and other emerging economies. We have to engage commercially with the rest of the world. That isn't Globalism. It's just necessary.
The new PM is a small-state Tory, a believer in tax cuts and individual responsibility. Despite being called a "socialist" by the increasingly deluded JRM (which he has withdrawn) - Sunak is a on the side of corporations and the wealthy. He is a traditional Tory in that respect.
But he is up against the populist elements in the Tory party. The Little Englanders and those opposed to technocrats and experts. Sunak is a competent manager, but not a political leader. Politics is too much dominated by the media, corporations, money markets, pharmaceuticals or any other are of "expertise" that wields unelected power, rather than just offering advisory support.
The only real course of action is a General Election. The alternative is still crap, but the mess the Tories are in needs to be flushed out of the national system. Perhaps we need Proportional Representation to deliver the "will of the people" - no matter what that is.