This article alludes to that, although I read a little blurb in a European article last week that explained why the average Frog didn't like this constitution (isn't it odd that so many European fish-wraps fussed about the Frog 'non' vote and what it meant to the EU rather than why the Frogs didn't like the constitution?). Anyway, it seems that the Frogs like their social bennies--job security, 2,3,4 months of vacation a year, pensions, etc. This new constitution threatened the womb-to-tomb blankie that the Frogs have come to rely on and that's why they said, 'non'.
And the reason the EU bureaucrats want to kill their citizen's beloved nurse maid? They want to be able to compete in the "global market", i.e. beat the US at its own game. They know that they can't compete with any other nation as long as their citizens have gold-plated social programs.
They know all the political theories. Political debate in Europe is intense and always has been, and governing in that situation is anything but simple.