The diagnosis here is also Ballmer syndrome. Pure, raving jealousy of something else that's hot and he's not. Back in the 2000s when Apple and Google and Facebook were taking off and Ballmer's Microsoft was always leaping to try to copy something else poorly, but with horrible internal policies and cutthroat politics and no leadership. (someone from that era of MSFT interviwed with us and described him as a "stage 5 cancer")
Musk is pissed off with all the hype in Silicon Valley being around AI happening without him, incensed that another, smarter, sociopath tech bro (Sam Altman) pilfered out OpenAI out from under him before he could, and gone off the rails because they became stupendously successful after Musk bailed. (There's no way they would succeed with someone like Elon running it)
Notice how much he talks about Tesla not being a "car" company. Take that seriously.
He's nuts with AI fever and delusions. I seriously think he may shut Fremont factory with no replacement, sell Shanghai to BYD, and give up on manufacturing entirely because it's not "AI" and not interesting any more.
Superchargers and cars aren't the hot thing in the Valley any more, and he isn't on the hot 100 executive lists any more. He needs his hit of fame and adulation and feeling he is leading the Cool.