With a sovereign fiat currency the upper limit of spending available to Congress (The monopoly patent holder on the US dollar) is always infinite. How would your tax contribution/payment add one iota to "infinite"? Taxation is about you needing the government's money, not the reverse, and occasionally the government needing you to have a bit less of it.

Ditto for Treasury bonds, only temporary and with an added interest component. Bonds are just as dependent upon government spending (you cannot loan what doesn't yet exist) and are really just welfare for the already wealthy. While the politicians are wringing their hands in faux concern for the budget little concern is shown for the economy, which is the real responsibility they have via Constitutional mandate (General welfare in Article 1: Section 8) to "coin" the currency as needed.