So the only taxes you agree with are small consumption based taxes? And i think you know what really gives a U.S. treasury note its value, and it ain't gold or the other stuff you mentioned.
What really gives the Treasury note its value outside of faith and some hard assets? Fiat currency is an imagination game.
Taxes: I'm generally fine with fair and reasonable consumption based taxes.
As for Income taxes, it is unreasonable at this point in our history to think Income taxes could be eliminated. Operating a government at the scale the US has grown to, with all the entitlements and programs that have been created, has made Income taxes a necessity.
But government also has a tax and spend problem. Tax more - spend more. Spend more - borrow more for un/underfunded programs - tax more to cover the debt ... RINSE / REPEAT.
Income taxes:
I've always advocated for a flattened, 4-step tax system that classifies all income as "income" with no delineation between Capital Gains and Ordinary Income.
Income is income - period. There's no need for the US income tax code to be over 3,000 pages or a tax form to be 20+ lines.
I'd be fine with income tax level breakouts as such: :
0 tax <$9,999 a year
10,000-$34,999 year, 15% - but you many only take the standard deduction. (0% tax on the first 9.9)
35,000-$149,999 - 20% - full deductions (10% on the first 24.9 of taxable income)
>$150,000 - 25% - full deductions (10% .... 20% at the corresponding limits).