>> also implies that U.S. law in all other respects should apply globally.
No it does not imply that at all, again you are reversing the position I am talking about. In fact US Law probably applies too much to other nations via International Trade Agreements to other nations already.
If the US Constitution would bar the NSA from spying with out probable cause on everyone, not just US Citizens, then that has absolutely zero bearing on if the EU wants to have gun control. I am not even sure how there is a connection to the 2 at all
I don't disagree with you, but what is the philosophical reason why? I know the reason, but I'd really like people such as yourself and the GP to voice it. Because it doesn't form a consistent philosophy in the same way that the current realization of U.S. law is not consistent, simply precisely the opposite of what you (and GP) are saying it should be.
If you disagree, the at least answer this question, why is it the way it is today which is the de facto way it works?
I mean, we'd appreciate your income tax, but you might not like all the gun ownership.