The USD is a tokenised representation of wealth. It is not an investment scheme.
Bonds are an investment scheme with returns.
Bonds, however, pay interest, not dividends.
Normally both interest and dividends are paid from profits, but government bonds don't generate profit for the government, so they must pay them out of collected taxes or fresh printing. This is where the ponzi element emerges.
The money printing system is more analogous to rights issues within companies (i.e. when new shares are issued within a company to raise money).
You can normally do a rights issue when the company is under valued, but it would be possible to do when it is overvalued, but would be less likely for the rights to be taken up. I think this is the state of bonds right now.
At some point, the issued bonds will fail to sell at any interest rate. At that point the government will have to raise taxes to compensate, this will become draconian and will create rapid wealth depletion for those not able to escape.
Interestingly, I realised from examples like the Lebanon, that hyperinflation does not automatically mean the end of that states monetary system. People in the Lebanon conduct business in the Lebanese pound, but once paid, they will either spend immediately or convert that money into more durable assets such as USD, crypto such as stablecoins, shares, gold etc...
The Lebanese pound is a medium of exchange, but not a store of value. It is only satisfies 50% of the function of money.
This may be the eventual fate of the USD.
The moral of this story, people are clever and find ways around failure points.