It's not an opinion. The fact that he is the richest man in the world is the proof that his decisions have been succesful. And obviously it's not luck because of repeated success.
You're obviously too young to have observed the dotcom bubble blow up and collapse, so I fully understand why you're drinking the kool aid. I guess we'll see how things pan out.
You seem to be arguing that your personal opinion is more correct than what markets say about Elon's companies, and you make this opinion the basis of your argument. Sorry, but you're not being logical here. By any measure, Tesla and SpaceX are extremely succesful companies, and to argue otherwise is just dumb.