You are simply wrong.
I'm actually correct, it's you who is "simply wrong" and brainwashed.
Debt means...
The so-called "national debt" is simply a ledger of how much money the US government has provided the private sector and the US economy in general, in the last 200+ years, that hasn't been collected in taxes and is now being saved and invested. The US federal government being the exclusive issuer of the USD will never go insolvent. It will always have enough dollars to pay out and meet its obligations because it has a monopoly on the creation of USD. Do you believe that our federal government (the exclusive creator and supplier of the dollar) is going to "run out" of dollars? If you do, you're laughably mistaken. That can't happen, any more than the scorekeeper in a football game can run out of points to give.
.... someone loaned you money...
I can get a USD loan, and owe someone that money, because I'm not the exclusive issuer of the dollar/USD, I'm just a little, misly user of the dollar. I have to get off my ass and get to work, in order to "earn" dollars. The US federal government doesn't need to "earn" dollars, because it creates dollars ex-nihilo (out of nothing), on a keyboard at THE FED. The FED is a chartered banking institution under the authority of the US Congress. It has permission from Uncle Sam, to "print money" or type it into a computer and deposit the amount in someone's account.
.....and you owe interest on that money, and need to pay that money back.
The US Federal government is the issuer of the USD, hence it only owes dollars to those who purchased US treasury bonds. If they are in the position to redeem those bonds, collect on their investment, the US federal government, will pay them what it has committed (obligated itself), to pay. However, your US federal government, can never "run-out" of money (go insolvent), because it is the exclusive CREATOR of the MAMMON (USD).
The US borrowed $32T and is paying $1T a year in interest....
No, it doesn't. You're conflating all of the money the US federal government has printed and typed into the computer in the last 200+ years, that hasn't been collected in taxes and is now in our hands (in your bank account or pocket), with treasury bonds. Yes indeed Uncle Sam promises you, that he will meet his obligation to pay you back with interest whenever you invest in US treasuries, but that "contract" or agreement isn't equal to you and me owing someone who lends us money. Our loans are actual loans because we don't create the money ex-nihilo, as the US federal government does. Uncle Sam has the power, and authority to create money from nothing.
The IRS brings in about $4T a year and the US government spends about $6T a year.
The actual, main function of the IRS is to help control inflation by taking money out of the economy, through taxation. All taxation assists in avoiding hyperinflation and forcing us (the people) to produce goods and services, to pay our taxes (property taxes), permits, licenses..etc, using the dollars that we earned. We can't pay our taxes and other government fees (permits..etc) in Mexican or Canadian currency, we must use USD. That increases the value of the dollar, makes us productive (pay your property taxes or live under a bridge, you need to generate an income), and takes money out of the economy to control inflation.
That is unsustainable. Interest on the Debt will crowd out "Mandatory Spending" Speaker McCarthy said that only 11% of the US Budget can be cut.
What you are describing are the limitations of a currency backed by gold. Our currency is a sovereign fiat currency, no longer hampered by how much gold we have. What determines the budgetary constraints of the US federal government is our GDP. If our production capacity is 24 trillion dollars, then our budget can be 15%, 25%, even 60% of that. Without any danger of run-away inflation. Hyperinflation occurs when the budget goes above our production capacity, hence there's too much money in the economy and not enough goods and services to meet consumer demand.
If the US federal government allocates funds to infrastructural works, it's practically impossible to cause inflation. When our government invests in the American people, building our nation's infrastructure (highways, bridges, transportation, energy, mining, healthcare, education, housing for the homeless..etc), it strengthens our economy, increases production (makes America more productive) and raises everyone's standard of living.
Because the US has a $20T economy doesn't mean that the government can spend any of that private money. In your communist world you can nationalize everything, in the real world that won't happen, its unconstitutional.