The desire for European Unity was a result of envying the US.
But you simply cannot create a US-like country out of Europe.
Not only was the project driven by past trauma and envy of the US, there has always been an undercurrent among the Yurp elites (theyre not French or German or Dutch or Italians........theyre Yurps) to set up this new European empire AGAINST America.......to use anti-Americanism as a tool to unite Europe essentially under Franco-German hegemony.
This has been their attitude despite America being Europes greatest benefactor in history and despite America still providing for their defense.