That doesn't address things at all, as the top comment and subsequent ones immediately point out. The entire foundational point of a polity is precisely that it

That doesn't address things at all, as the top comment and subsequent ones immediately point out. The entire foundational point of a polity is precisely that it defines the law within its own jurisdiction. No country, not even the USA, is powerful enough to actually act as a world government right now, which means that it is completely legally fine and in some cases morally correct to blow off laws of other polities so long as one remains careful to remain out of their power. The EU can demand others do anything they like in the same way any random person on the street could but whether that actually means anything is purely a matter of power.