I think people should take into account that something deep inside Elon knows he's in deep shit, and is probably contributing to him taking rash actions and generally lashing out. He was never a wise man, but I still suspect we're seeing him at a low ebb of rationality. Again, no sort of defense: this is a problem entirely of his own making.
I think he's scared for his own safety. In fact he has basically said as much. As rich as he is, he still owes a lot of money and favors to a lot of people. Some of them are quite powerful and ruthless. They're likely displeased at how he's pissing away the value of an asset in which they have an interest. Just because he's paranoid doesn't mean people aren't out to get him. If I had the kinds of friends or enemies that he has, and particularly if I had been busy converting the first into the second, I'd be worried too.