Firstly, you seriously underestimate the asteroid risk. They literally do appear out of the void and we do not have the resources to track them all, and existing efforts are seriously underfunded. Having a commercial entity that regularly performs multiple launches per year is invaluable as it means we can react more swiftly in case of a late detection, or have multiple attempts at deflecting it. NASA previously had very few launches by comparison, and the fact that their launch systems were not reusable without significant refits makes it ridiculous to claim that we would be just as safe without SpaceX.
Secondly, asteroid risk is only one risk to planet Earth. Another is nuclear war, or climate change, or an even more deadly pandemic, or any number of other things. Making humanity interplanetary requires reliable and frequent launch capability.
> I have yet to see someone successfully explain how neuralink will protect anyone from "AI".
If you agree that artificial general intelligence is an existential risk to humanity, then why is it a risk, exactly? presumably because it has computational abilities that we cannot match with biology. Does it not then follow that augmenting biology with those same abilities would somewhat mitigate those risks? Whether that pans out remains to be seen, but AI performance is accelerating so this is going to become a serious problem within 20 years.
> Hyperloop doesn't address any urgent problem, it's a moonshot with potential to earn absurd amounts from public contracts.
The boring company is not one of his ventures to combat existential risk, and so is not something Musk cares about too much. Why do you think he called it the boring company? Because its products are boring by comparison.
> Twitter is actively harmful for humanity.
He literally just bought it, and he has explicitly stated that he thinks Twitter is important for a functioning democracy. How about you give him a chance to actually prove it out.
I have yet to see someone successfully explain how neuralink will protect anyone from "AI".
Electric cars may have some success shifting our oil based man-transports to electric, but the world fails to use the advantages that brings and just burns more coal.
Hyperloop doesn't address any urgent problem, it's a moonshot with potential to earn absurd amounts from public contracts.
Twitter is actively harmful for humanity.
So, besides tesla, for which there was probably the best monetary incentive, none of those companies achieve any higher function you advertise then to have.