The "default" being that the Incompetent Incumbent had to go. And the predecessor to the Incompetent Incumbent is a crook and liar so untrustworthy that even that bag of snakes of the Parliamentary Tory party couldn't stand the idea of him coming back. And that Sunak was the only one left who didn't seem like a raving lunatic?

Is there a hint of some grudging admiration in there somewhere
To be fair the incompetent incumbent as you affectionately call her he did beat your hero fair and square in the election to be the Tory leader
With regards to the predecessor of the incompetent incumbent it would seem telling a few porkies came naturally to him, but to actually call him a crook seems a bit excessive unless you have evidence to back up your claim, just an observation but maybe your allowing your obvious bitterness towards the government cloud your judgement somewhat

Fully agree with this.

Truss was just laughably incompetent.

Johnson though was - and remains - downright dangerous. With what he's done to this country and with the cult of personality that he fostered he will go down as perhaps the worst and most destructive Prime Minister in history. And I include Neville Chamberlain in that. At least he was doing his best in what he thought was the country's interests.

I read an article today where Johnson was described as "having a unique relationship with the truth". Rather more polite than the way that most people would describe him but, nonetheless, it's true.