Elon paid $44 billion for Twitter, will be destroy something that he paid an insane amount of money? Elon is a seasoned businessman, and all of his projects are making profits for him. Therefore, he is not going to destroy twitter, he perfectly knows what he is doing.
He overpaid for Twitter. Elon initially put a bid as a joke, and then wanted to back out of the purchase because Twitter agreed to it, and the FTC forced him to pay the $44 billion for twitter. I don't think Twitter was even worth that amount, or close to it. And due to that, Elon has been making rash decisions with Twitter in the hopes he can make a portion of that money back, but Twitter wasn't as profitable as he had hoped, so he fired a bunch of staff, then rehired a bunch of staff back. Then did twitter blue, was a joke and resulted in people pretending to be others.
Elon was also given his wealth, he didn't grow it or was some self made man. He's had success because of his wealth, without it, there's no chance this he would be even given the time of day. He's a nepotism baby with too much money in his hands.
He also has many failed projects and projects not yet started. Like his hyperloop roadway, that was a total failure and a joke. He wanted to make it where a custom made cab would be taken through a tunnel, except it turned out to be a tunnel you can take your car through. It was a failure from the start, because we already have trains.
Do some research on Elon and you'll start to see how fake he is. Don't get me wrong, he has done some good stuff, like Starlink, SpaceX, helped make PayPal and worked with Tesla and some more stuff. But the more ambitious projects he wants to do have been talked about for years and nothing ever happens with it. He promises things, and then never delivers, at least most of the time.