The biggest thing to look for in National Debt isn't only the size of the debt (or even the ratio with GDP). The important thing to look for is where the money is going!
You see in some cases printing money out of thin air is not the worst thing but only as long as that money is entering a healthy economy and goes into production. But when the money is being printed to cover some deficit, pay for extra costs that never existed before (like starting a couple of very costly wars), etc. that is when it becomes problematic because the government would be increasing liquidity WITHOUT increasing the size of the economy. That means higher inflation.
This is exactly why US has a very high interest rate these days. All the money they've been printing has been increasing the inflation and to battle that they are desperately manipulating the interest rates which is not working as well as it should while causing recession at the same time...
They started beautifully and essentially, and directly but "hidden" pointed at Russia, and then stupidly jumped to ... USA

I will explain the problem with your position. The US, yes I do not deny it, prints DOLLAR quite easily. But the market that consumes the dollar:
- Is the US domestic market, with actually the largest consumption of anything and everything by the entire US population.
- The DOLLAR is the currency of the world economy, which is many times larger than the US economy and consumption, and will absorb almost any amount of "printed dollars"
- The USA, participating in bringing order, where the principles of legality, democracy, law and other human values are violated, does not print money that becomes "ashes", as for example Russia does now, where about 40% of GDP (according to official figures, but not officially more), within 1-6 months turns into ashes, rust and ... corpses.
- The USA INVEST in its economy, because even "non-refundable aid" brings benefits to the USA.
- Plus, in the context of the topic - calculate the balance of the size of the US debt, and the size of the world's obligations to the US
