In which case you are doing business with (say) France, which has its own alcohol customs laws that you have to follow.
I never said that you have to follow the laws of the country of nationality of your clients. That'd be a ridiculous thing to say, and I'm not sure why you're arguing against that particular strawman (the GDPR only talks about EU residents and doesn't mention EU citizenship at all).
The word choice of citizen vs resident is a red herring. The issue is the extrajurisdictional reach of the law.
An EU resident visiting" your business which is hosted and operated in the United States, is the same as a Saudi Arabian coming to the United States to buy alcohol.
This is the reason why the GDPR requests an EU designated representative, so there is someone to charge locally.
> An EU resident "visiting" your business which is hosted and operated in the United States
Except the EU resident isn't "visiting" your business, you're providing a service to them across the US-EU border (and just like any cross-border service there are rules). I really don't get why this case is any more complicated than any other kind of consumer law (you can't sell electronics that blatantly catch fire to Australian customers, even if you're based in a country where consumer laws don't exist).
You aren’t providing the service across the border. The service is in your own country. The buyer is using telecommunications to make an order across the border.
The buyer is the one responsible for knowing their own local laws and should be responsible for managing them.
If a Saudi Arabian couple ordered a gay wedding cake from a baker in Montreal, over the phone from Saudi Arabia, in preparation for flying to Canada to get married, which laws apply? To whom?
I never said that you have to follow the laws of the country of nationality of your clients. That'd be a ridiculous thing to say, and I'm not sure why you're arguing against that particular strawman (the GDPR only talks about EU residents and doesn't mention EU citizenship at all).