I'm not convinced that leaving the EU is in the best interests of France. I do however believe that cultural sovereignty has to be returned to each member country. The EU makes perfect sense as an economic bloc but becomes destructive when it seeks to remodel each country as having a mandated set of "European" values.
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The point is the EU doesnt have a choice. If the EU wants to be a single economic and financial bloc with a common currency, then it has to move towards further centralisation.
I dont say that it is the best way, but it is how that stands.
I believe that setting standards and norms for industrial activities like manufacturing enhances possible synergies within an economic bloc. Assuring that banking and financial practices are harmonized to facilitate trade between EU members is logical.
However creating and imposing a set of cultural values and norms enforced through EU regulations are well beyond the scope or necessity in the creation of an economic bloc.
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I think that there are only two options:
1. The EU only as a common trade area. Yes, there may be common standards and norms in manufacturing, banking sector, finance services etc. But that is all. All the member states can feel free in their actions in external and internal affairs.
2. The EU as virtually a federation of states with common budget (including dotations for member states, areas and some sectors all over the EU), common currency, free movement of workers inside the EU etc.
Creating this federation is impossible without a set of common cultural values and norms.
All two options have their obvious advantages and flaws.