As much as I'd like to blame Musk's tantrums on his obvious lack of technical chops, I think it's far more likely that they're due to a combination of his piss-poor emotional intelligence and realizing that he was wrong about so many of his pre-purchase criticisms.
Now that he can actually tell that right-wing provocateurs were actually being algorithmically boosted and not suppressed, that there was no concerted "censorship" efforts (moderation is not censorship), and that the people he's been championing are full-on toxic to Twitter's viability and any chance at monetization, he'd rather burn Twitter (the service, it's most devoted users, and it's employees) down than admit he's wrong.