He bought this company. Why doesn't he sell it? He's clearly not running it well, and he regretted buying it in the first place. Let's start a petition to encourage Musk to let it go.
It doesn't have to be xitty. Change the name, ban the racists, recruit new staff who have twitter on their CV. And if it fails, you're only out the $3.50 it's worth now.
It once had the potential to be a net good. Widespread and rapid dissemination of information in an easily digestible format is a positive thing, in theory.
It stokes his ego. People have to listen to him and he can promote his own voice far beyond what it's worth.
Why do you think he regrets buying Twitter? He thinks he's saving the world from leftist propaganda. He will never be poor. It would hurt to lose 40B, but not that much. Only his ego would feel it.
Right now it would only sell at a massive loss, and there's no going back from that black mark. Xitter is the hill he's going to die on. We can only hope that happens sooner than later.