The US managed to fund a military, roads, bridges, schools, hospitals, and other good stuff before that year, right?
Mostly, no, the United States did not. The states did some (less than they alone, ignoring the feds, do now), the US did a little (far less than now, and funded by extensive use of simultaneously regressive and contractionary tariffs and excise taxes) at normal times and when it scaled up imposed special taxes for the purpose (including, starting in the Civil War, income taxes.) For the military part specifically, prior to WWI (and, to—IIRC—a lesser extent between WWI and WWII), the US had (especially aside from the Navy) very little standing military, relying on expanding out from a small cadre via conscription and rushed training in crises.
The truth is the tax system has two primary objectives:
1) to prevent upper middle class from the type of long term wealth accumulation that allows the plebs to enter (and challenge) the elite
2) To fund a hyper scale bureaucracy that constantly seeks the lower bound on the efficiency curve
The capitalist middle class (the petit bourgeoisie, the thing thar Americans tend to call the upper middle class because Americans refer to a very large segment of the working classc , including the whole of the proletarian intelligentsia, as “middle class”) aren't plebs, they are, more like the equites.
From the GP...
> The government takes some of that value by simply creating more dollars.
OP's comment makes no sense.
That is no longer the policy and other currently existing currencies do posses the potential to compete with USD. Why would I choose to settle my debts in a rapidly-inflating currency that is backed by nothing?
I just didn't understand the statement that a currency's value "derives largely from the ability to pay [income] taxes with them". That statement by itself is historically false, as the gold-backed currency shows. It still makes no sense to me even without gold-backing. As long as the money supply is kept relatively stable, all you need is for a few government services to operate exclusively in USD (e.g. welfare, where funds are raised via land tax or carbon tax for example), and for a reasonable amount of trust in the government, and to perhaps kickstart the group delusion of trust with initial gold-backing, and you're all set. I can make sense of the statement strictly in the context of money printing, where you need the offsetting deflationary impact from taxation (not necessarily income taxation), but that meaning wasn't so clear from the original statement that I was responding to.
The states unconditional right to your labor has no mechanism to encourage preservation of rights.