We in the EU are fed up being told by the US, where and how we may do our job while at the same time invading the EU with N reg. a/c which only FAA pilots are allowed to fly.
The N registered aircraft invasion of EU should be addressed to the respective's aircraft owners. Why do they prefer to register their aircraft in US and not in their own country beats me? Maybe is easier on them? Maybe better taxes? Maybe because they want to avoid the impossible bureaucratic system existing in many EU countries which BTW as a previous collegue pointed is just a conglomerate of 27 separate countries, each with its different set of laws, language, rules but trying to get a common ground. US is one country and EU is 27 countries in which many shouldn't be even considered yet part of civilized world.
Regarding being fed up by US, it would have been better if you said that after WWII or during Cold War. How short people memories could be? It's so easy to bite and spit the feeding hand when there is no need for it anymore.