That's called inflation, and the public really doesn't like it. Economists don't actually like it either, nor do governments like it to be too high as that can lead to lots of big problems.
as long as those assets continue to outgain the cost of inflation.
see greece, latin america, russia, etc etc
It is observed that sovereign borrowers that inflate their way out of debt find their ability to borrow in the local currency reduced. They may still be able to borrow USD, though. Argentina in particular comes to mind, with something around 50% of total government debt denominated in USD [0]. Even Russia appears to have $40B in USD or EUR debt (private borrowers in Russia have another $100B or so) [1]. Of course, they can still outright renege on this USD denominated debt but it removes the option of inflating it away.
[0] - https://www.stlouisfed.org/on-the-economy/2021/august/dollar... [1] - https://www.nytimes.com/2022/03/15/business/russia-debt-bond...
The US is a military, technological, energy & food producing powerhouse. The alternatives are either getting their asses handed to them in a war against their much smaller neighbor or facing a massive demographics crisis