I also think it's been too long since he, let us be honest, steal another idea he can take credit for.
I actually don't think Musk is 100% stupid. I think there's a chance (not a certainty, not even necessary a likelihood, but a non-meaningless chance) that Musk is one of those rare people who is a specific type of "idea" guy.
Like the Ur modern Example, Edison. "Edison was a fraud, he stole and took credit for everything" screams the internet while idolizing Telsa (the person, not the company) despite Telsa being DEEPLY WEIRD.
Here's the thing, and what Edison (who does get credit he doesn't deserve for stuff he didn't invent, nobody @ me) did. An electric lightbulb is an amazing invention. But without a socket to plug it into, a power grid to connect to a power station, and a power station to supply that power it's barely above the level of a Fidget Spinner as to actual practicality.
Edison did not invent the lightbuld and his improvements on the design were not nothing but they weren't THAT much. What Edison did was get an actual practical entire point A to point B system to market.
Something you could honestly call a modern-ish incandescent bulb that worked well enough for SOME use existed as far back as maybe 1791 if you really want to stretch it, certainly by the mid-1850s. But they were invented and they just... sat there doing nothing because there was no system to plug them into or way to practically use them.
Edison started selling his mildly improved design in 1879 and within a few years he had electric lighting system up in public places powered by his power plants by 1910 you could buy an entire Edison branded home electrical system with an onsite power plant, wiring, and lighting THROUGH THE SEARS CATALOG.
Let us be at least someone honest. It's largely the same with electric cars. An electric car is nice. An electric car without a charging network is novelty.
I do think it is somewhat plausible that Musk does have some knack for looking at a pre-existing technology and figuring out a way to kick start it into the next generation of usability. I think, had he not grown too in love with his own mythology and turned into a self feeding narcissistic *******, he might (MIGHT) have been a decent "idea guy" to have around, just don't let him lead or be in charge of anything.