They infringe if they don't pay their share of what is needed to provide for the common welfare, defense, etc.

They are paying their share, for every worker they pay the appropriate taxes on the wages and those taxes are there to provide the common welfare, defense etc. since they pay their workers quite a lot they probably pay more than needed, so not sure why you would single them out, many companies pay much less like Walmart etc, they pay so much lower salaries so therefore contribute way less taxes per person they need to work there, complain about those first.

Why is that amount their share, and not more or less? Corporate taxes are pretty low, and also capital gains, so I tend to think it is much less.

Oh, I forgot, poor victim Elon! The right-wingers pull out this rhetoric so consistently, it's a parody of itself every time. But now Elon Musk is a victim? Whose next? Trump?

It's not "their share", it's your fantasy of getting part of their money that you're trying to impose. None of that money is yours to decide the fate of it.

How do we pay for the enormous amount of common public goods, such as roads, a legal system, safety, security, education, health, NASA, etc etc, if we don't jointly pay for them?

And if we jointly pay for them, don't each of us have a share to pay?

(I think we both are in good faith. No need to imply I'm a thief or oppressor.)

That's a separate question. The fact that you want to do something doesn't make you automatically the owner of somebody's else money. You can't just say "I want to do X therefor it's fair that Elon Musk will pay for it, and if he doesn't, he is evil and must be jailed". There's nothing "fair" in this. It's not what "fair" means or ever meant. Especially given that Elon Musk is already paying for so much - and still you think it's "not fair" he doesn't pay more, with the sole foundation for this being that you want more.

> And if we jointly pay for them, don't each of us have a share to pay?

Yes, but despite them paying orders of magnitude more than you do, you still complain they don't pay their "fair share", the definition of "fair" being based solely on the fact that you want them to pay more. I don't see any justification for claiming this has anything to do with "fair".

> The fact that you want to do something doesn't make you automatically the owner of somebody's else money.

That's exactly what I was thinking. I am the owner of your money, in fact. Hand it over. Post your BTC here (nobody else touch it, it's mine).

> "I want to do X therefor it's fair that Elon Musk will pay for it, and if he doesn't, he is evil and must be jailed"

We are equal under the law and we all should pay for it, nobody treated differently.

> the definition of "fair" being based solely on the fact that you want them to pay more.

When did I tell you what my basis was?

The image of Musk whining 'it's not fair' like a 6 year old is pretty incredible, but in fairness to Musk, someone else is doing it. But for reasons unknown - why are you advocating for this complete stranger?

I just point out your pretense at "fairness" is nothing but deception, and you have to resort to clowning and ad-hominem attacks as a response, which indeed proves you don't have any proper argument beyond "me want!". If is not me and not Musk who cries childishly "not fair!" when things are not as you like, as you can easily witness, and others are reluctant to finance your wants.

Your surprise that somebody can object to untruth where it's not personally beneficial to him tells yet more about your approach to fairness.