I wish he hadn't gone along with them, but there likely had to be concessions before attempting to make progress. When it became clear cost savings and efficiency wasn't the actual goal in the White House, Elon left.
For someone with such a vaunted intelligence, he was either dumb or complicit. "Working things out from first principles" would have had him leave after the very first step.
Not everyone agrees with you politically and it's unpleasant to have to wade through these kind of rants to read about interesting things.
You have strong feelings, I get it, but please stop the pollution. I am trying my best to say this in a kind and sincere way. There are plenty of other places to make political rants.
https://news.ycombinator.com/newsguidelines.html
(There's one in the In Comments section that you're in clear breach of)