Should a person who expects a functioning federal government, and all the benefits thereof, expect to pay nothing for it? How much is enough? We are among the least taxed countries in the world. For me the dissonance is all the things I'd like the government to be, and willing to pay for vs the idea that there is so much corruption and general incompetence that I should not want to add fuel to the fire. It's quite the dichotomy.
If you want to look at it by income, the federal government has generally been spending around 20% of GDP (this is increased massively recently, and is now around 24%). GDP isnt' equivalent to income, but take the 20% number (b/c the recent increase isn't b/c of an increase in actual costs; just more pork), take out the half that are transfer payments, and I think if you're not paying a 10% effective tax rate, that's a good ball park for determining whether you are paying your fair share for government, or at least paying an amount that would allow for a functioning federal government.
If you're paying a 20% effective tax rate, you are more than paying for your share of not only a functional government but also all the dysfunctional parts (or at least until the recent spike).
Alternatively, if you want to look at headcount rather than income, we're spending something like 6.5 trillion this year, so with 333M people, that works out to roughly $19,519 per person. So if you are paying that per family member, you're certainly paying your fair share or more.
If you limit it to just adults, it's about $25k per adult, so that per adult would be the cutoff for saying you are for sure paying your share or more.
Of course those numbers are talking assume income taxes are the only revenue. Would be a little less than that if you backed out other income. And then how you determine how much of a tariff burden or corporate income tax burden you bear is pretty difficult to determine. Subtracting corporate taxes, tariffs, and other revenue from the 6.5 trillion would probably give a fairer number.