I heard on a podcast the other day, which I need to look this up, but they said that Tether was the 13th largest holder of US Bonds... If that's the case, then yeah, they aren't going anywhere.
I honestly think that USDC is going to be tapped for the 'CBDC' of the US. They can already trace it, stop transactions, and blacklist wallets because Circle caved to the authorities. This is where we really need HBD to shine as a decentralized option.