The US government is so powerful, they are the only country that enforces a draconian global taxation scheme on any citizen or person who has ever held a US green card, even after they permanently leave the country. The US treasury will withhold the ability to transact in US Dollars from any country that does not report the holdings of US-adjacent persons every single year.
If you think you're out of reach of a country that treats their own citizens as criminals by default the minute they leave the country, I have some swamp land in Florida to sell you.