I was quite clear what I meant by trading block, I wasn't aware that was a specific term of art, but that's not what I meant regardless and that's clear from my response.

I understand it just fine, perhaps you don't understand what I'm saying. No, if an EU citizen comes to my US website, that does not grant the EU authority over me no matter what they claim. I live under US law, not EU law, not Chinese law, not North Korean law. Those countries are free to pass laws claiming they have jurisdiction over me when I do business with their citizens, but claiming it doesn't make it true. No I do not have to comply, the EU has zero authority over me no matter who I do business with _unless_ I'm in the EU where they can do something about it. They can attempt to stop their citizens from using my website, but it is not upon me to do so.

There is no agreement between the US and the EU to respect the GDPR, it's an untested assertion of global authority that cannot stand. The world cannot function if every country can assert every citizen in the world must comply with its laws because their citizens came to my US website. That's a violation of national sovereignty and it will fail when the EU tries to assert that authority and the US courts say, sorry, but no, you don't have jurisdiction over our citizens which is what's going to happen.

The EU can and will enforce the GDPR within its borders, that's expected; outside its borders, it has no jurisdiction and no teeth; I don't have to give a damn about EU law while operating my US business in the US. That a visitor comes from someone outside the US does not change that my business is in the US. I do not have to obey other countries laws.