Originally posted on 06/30/2022:

How do they legally ban businesses that are 100% legal in their own jurisdictions?

USA does not get to make rules for other countries nor can they ban Americans from using legal foreign business under international trade agreements.

USA already got convicted and fined for breaking international laws when they tried to ban Jamaica books.

That's why we ended up with the bans on money transfer businesses being used for gambling as a more legal way to try.