I genuinely think he's just a lackey for the ERG.
I think he'd throw his hand in with anyone that he thinks would further his career.
Whether he eventually jumps ship and admits it was all a gigantic mistake, or whether he's forced out, or whether he continues to bluff his way through, I'm not sure.
The ERG have a controlling power in Tory govt, so he has to pander to them
they arent a majority, but enough to stop him getting votes through.
Johnson promised them "vote for the WA and you will get no deal in a years time