[reissbaker]

"Payroll Tax" isn't a tax, it's a mechanism for paying taxes by witholding tax from a paycheck. Which payroll taxes are you referring to when you claim that the CA effective tax rate for someone making 250k USD is higher than the equivalent in France?

Personally, by far my largest tax is income tax (which is far lower in CA than France for my level of income). Everything else is basically meaningless in comparison.

"Healthcare" also isn't a particularly strong case for the scenario you're proposing. If you're making $250k, you've probably got pretty good employer sponsored health insurance. Personally I pay nothing for a fairly good plan with low deductibles and copays. Health insurance in the US sucks for the unemployed and for low-income workers, but it's not at all bad for high earners.

401k taxation is also much more nuanced than you're making it out to be: it's taxed on withdrawal, at the rate you're withdrawing it. If you're retired — which is when you'd withdraw — your other income is probably zero, so your 401k is taxed in a very low bracket since it's your only income, and you're only withdrawing as much as you need to spend — as opposed to income earlier in life, where you're trying to make much more than you spend in order to build up savings. So while it's not exactly tax-free, it's extremely low tax generally. Presumably any other money you're relying on at that point you'd structure as long-term capital gains, which are also taxed at a low rate.