Isn't it more simple to have one standards, one sets of rules and one licence (say JAA/EASA) so that everyone flying in the airspace we all fly in is subjected (in theory of course) to the same minimum flight safety standards?
An excellent suggestion, but why stop at EASA? Perhaps we should invent a United Nations body established by international treaty to draw up Standards and Recommended Practices. We could give it a snappy title, say the "International Civil Aviation Organisation." Then States could issue licences that comply with the standards.
Presumably your grand idea for world domination would involve banning non-EASA licence holders from EASA airspace and similarly banning EASA licence holders from non-EASA airspace as well as an end to mutual licence recognition on order to facilitate your laudable objective of ensuring "that everyone flying in the airspace we all fly in is subjected (in theory of course) to the same minimum flight safety standards?"