How can Facebook both allow a user in the EU to send messages to a group of people in the US and not store data in the US?

> How can Facebook Run their business in a legal way?

There's a word for businesses that are systemically unable to comply with the law.

I don't know if Facebook is one of those, but it might be. Shutting down is always an option for that kind of company. Nothing of vale would be lost.

If you think it's technically impossible the burden of proof is on you.

Facebook has not claimed it's not technically possible.

Does it really take that much of a leap of logic that if EU person sends data to a person in the US, that data is going to be stored on a server in the US?

>Does it really take that much of a leap of logic that if EU person sends data to a person in the US, that data is going to be stored on a server in the US?

Yeah, it does. A person in the US is not a server in the US. It's an iPhone in the US, not a server.

Does it really take that much of a leap of logic to understand that the server doesn't have to be on the same continent as the user?

That's not at all how it works. You're arguing against points where your understanding of the related technology is poor.