hmm and which laws supercedes which? The EU > Nations - that worries me. And not even going to attempt to get my tiny mind around Law and Order (EU Court of Justice is it) and the inability of nations to manage their own laws (to some degree anyway).
The EU doesn't supercedes nations.
Look it's very simple and it comes from Kelsen who was there way before the EU.
Grundnorm>Constitution>Treaties>Organic Laws>Ordinary Laws>Precedents.
This pyramid is followed almost everywhere on the globe, so when your politicians decide to sign a treaty or an organic law, they can't complain about anything because they know that these treaties are legally above the common laws, they know exactly what they are doing and they know that the vast majority of people have absolutely no understanding of the legal system they are living in, people are shafted by their own countrymen who pretend to be victim of their own actions.