They could also make it illegal for any US financial institution to do business with any financial institution that interacts with crypto.
They could probably also make it a crime to buy/sell crypto in America.
Its also trivial to turn your crypto into yuan and your yuan into $. So I'm not sure such a ban would be even remotely effective.
This comment chain starts with "Maybe after the mobster losers in the white House finally get kicked out we can just ban this thing forever."
In America? KYC would suffice.
> In America?
No.