You forgot the most important one.
3) PayPal is a huge PR nightmare, a pseudo-bank that sits between legal boundaries whenever it needs to in order to maximize profit, screwing over thousands of folks -- many of them with small businesses that foolishly relied on them as a service. A successful service that everyone uses, and most people hate -- the customers are swept in by me-tooisms and forced participation.
If I were Musk, or I was a Musk evangelist , i'd stay far away from that 'accomplishment', as well.
He's not responsible for the entirety of the beast, but afaik he IS responsible for the viral aspects of their customer recruitment -- a method I feel is unethical from a monopolistic standpoint for a banking entity to participate in.
You can say PayPal is bad, but pretty much any company starting on that path run in many of the same issues.
on edit: changed I'm not sure if to I'm not sure that
Anyone can foist one's own unbridled ambitions, mixed in with a dash of lottery dreaming, tossed in with a bit of hubris, to come up with whatever the bright shiny future could be.
The company is more resilient than Oracle, it was left for dead for centuries, but it's still around.
Let alone if that wasn't freely posted in public, but instead gathered surreptitiously and correlated from many sources over much time.
I bring this up because I think it is important that Elon has some projects targeted at making the world better today, like PayPal, the Boring Company, and Starlink, some projects designed to avoid catastrophes a few decades from now, like Tesla and Solar City, and some projects designed to help humanity centuries from now, like SpaceX going to Mars. This is a very nice way of resolving the objection that Elon should focus on Earth's problems, which is to observe that you can both make the world a better place today while also working towards a brighter long term future.
I think that to the extent that Elon will inevitably serve as a role model, I want that part of the story to be told as well.