This is (mostly) untrue.

US Federal Taxes go to the Treasury[1][2], which then spends it on Federal government programs. If spending is more than receipts, the US Federal Reserve issues securities (ie, sells bonds) to raise money[3].

Quantitative Easing by the Federal Reserve does cause money to "appear", but this is different to the general process for funding federal government programs[4] (Note that the money can disappear if/when the Reserve chooses to resell those assets).

[1] https://fiscaldata.treasury.gov/datasets/monthly-treasury-st...

[2] https://www.reuters.com/article/us-usa-trump-taxes-revenue-e... ("Of the $3.46 trillion in receipts taken in by the U.S. Treasury during fiscal 2019")

[3] https://www.stlouisfed.org/open-vault/2019/november/where-fe...

[4] https://www.forbes.com/advisor/investing/quantitative-easing...

Wonderful. Than I suggest that we cancel all taxes and just use the printed money to fund everything.

Then what the hell are they doing with all the money I send them?

Taxing your money away is a means of fighting inflation. Taxes and tax breaks also shape behavior. Sugary beverage taxes, tobacco taxes, mortgage interest deductions.

Federal taxes also legitimize the currency by providing stable demand for the currency.

Hopefully helping our poor and needy.

Lining their pockets.

Wait, what? No; that's not how that works at all. Where did you read that?

The shortfall between Federal government spending and tax receipts is the deficit. The government has to borrow that money, which it does by having the Treasury issue debt securities.

This is correct. I attempt to provide references here: https://news.ycombinator.com/item?id=27685631

Not sure where these claims come from either.

Federal government deficit=private sector surplus. The money is conserved. Federal surplus=private sector surplus. People who want to balance the federal budget either don’t know what they are talking about, or are cynically trying to redistribute money to the wealthy.