They’re not barred from access. Just can’t use US banks. There are many banks in the world.
The world is run by the USD. If you can’t do business using USD, it is crippling.
Hate to tell you this, but most banks in the world deal in multiple currencies including USD.
Do you know what the Petrodollar is? Have you ever seen USD called “the World’s Reserve Currency”? There are reasons for this. The majority of world commerce is done using USD.
The US dollar has served as the world’s leading reserve currency since World War II. Today, the dollar represents 58 percent of the value of foreign reserve holdings worldwide. The euro, the second-most-used currency, comprises only 20 percent of foreign reserve holdings.
https://www.atlanticcouncil.org/programs/geoeconomics-center/dollar-dominance-monitor/
As the article goes on to say, Russia’s invastion of Ukraine, and BRICS attempt to move away from USD toward other currencies like the Yuan, is changing the landscape as we speak.
But since 1963, or whenever the fuck it started, the USD has dominated. The act of simply not allowing a nation to participate in that, for such a long time, does a lot of damage. I think Cuba has done pretty well for itself, all things considered.
They’re allowed to play monopoly, they just can’t use the regular monopoly money.
The global economy is run on the US dollar. It’s the measuring stick all other currencies use as a reference point.
And the US Dollar is the measuring stuck upon which all other currencies are based upon. I’d it takes all kinds of regulatory and embargo based nonsense for a bank to play ball with the US and Cuba, that bank won’t do it.