That was on a sale of Tesla stock that he'd held for much longer than the long term rate threshold. He paid 20% on it, or plausibly less. I, personally pay a higher rate than that. Big numbers notwithstanding, Elon Musk shouldn't be paying less tax than I do, sorry.
You're dodging, and I know you're smart enough to know how this goes. I don't make money with long term stock, I make salary. I pay >>20% tax on that salary. Billionaries make, statistically, zero salary. All their income is on long term gains. All of it. So billionaires pay 20%, and that only if they're dumb enough not to find other shelters.
You're just saying "Well, that's the way the tax code works". I'm saying "The tax code sucks", and your point is non-responsive.
So how "over time" do I need to wait until I start paying the same tax rate as a billionaire? Seems like your solution to "the rich pay less tax" is "well, everyone should just be rich then"?
"Let them eat cake" makes for extremely poor federal revenue policy.