question about regulatory quirk of the blockchain


Let's say a company is regulated in the EU to move bonds on chain. What if someone in the US buys these bonds when they are on chain. Is this illegal because there are laws about what licenses you need to have to sell securities to US citizens?

This company cannot stop US citizens from making on chain purchases - the best they can do is not market themselves there, yet if a US citizen buys a bond on chain they are still committing an offense as they do not have a US license to sell to US citizens.

What is the resolution to this problem?