the simply answer to that is to make it possible to elite could buy all assets via debt and can dump the non important once to the public with high profit.The US is in a very vulnerable position itself. Highly divided, over extended, has 100T debt... They cannot afford high interest rates. (If they could, why did they had 0 since 2008).
Usually it does not work in such a smooth way, one can look at UK for example and their tough stance to increase rate. They had to intervene massively and hence weakening their currency. This lies ahead.
Debt is not a problem if you understand how the fed works.They could keep going for decades this way.Its a myth that debt is an issue for them
UK is in that position on purpose.I posted for years the two worst countries in this crisis will be #1 UK and #2 Germany and not because of their sitution but because of the agenda for them