Never forget: Elon Musk is a mentally teenage incel troll from the time the internet was most fertile to them.
He's very very very rich now but his character has not changed.
Sure, he has the power to go with it now and seems hell-bent on using it, which makes him much more dangerous than any mere troll.
We really need to take people like him at their word when they talk about hanging people, but otoh we must remember that they're nothing but whiny trolls and bullies who accidentally grew into adults.