Just because you don't know what he's doing doesn't mean he doesn't know what he's doing. That's a common error in logic.
You'll also have to ignore that he's built companies that land rockets back on Earth and produce millions of EVs. He's objectively demonstrated ability.
He also built the company, not the rockets. In a different thread here on HN, some of the SpaceX guys were commenting how he actually had very little understanding of rockets, understandably. But the credit goes to him regardless.
