His incompetence as a business runner should have been blatantly clear when the SEC had to step into Tesla due to his comments and have him removed from all financial decision making for the company.
He straight up has no idea how to run a business itself and always acts like he’s the full blown god of the companies he claims to run.
Fun story: He didn’t found Tesla as he claimed. He bought in and part of the deal was he could claim as a founder. (founded by Martin Eberhard and Marc Tarpenning)
Also fun Fact: He only started Space X because he was ousted from PayPal for being a shitty CEO by the board.