Stablecoins are the gateway from fiat to crypto and back.
Estimated total of the fiat currency collected by the stablecoin issuers is less than $100 billion.
Some part of the collected amount is loaned.
The total market capitalization of the crypto market is $2+ trillion.
There is chance that if or when people decide to cash out from crypto back to fiat the stablecoin issuers are not going to keep the 1:1 peg.
US and the world has to deal with the people who lost a little or a lot.