Let's look at this comparatively.
actually, the civil war should count, more Americans died in it than in any other conflict (including the word wars.)
USA: 4 years of war, admittedly the bloodiest in its history. Europe: centuries upon centuries of warfare between tribal groups/their descendents
Also, while Americans usually speak the same language, the US has no "national language" and quite a few Americans only speak spanish or whatever their language is.
English is the de facto language. Show me where the government does not use English. Yes, Spanish and other languages are prevalent, especially with America's relatively higher tolerance for immigration, but English is a dominating and unifying force.
While yes, Europeans do have many different languages, many Europeans speak English Many Europeans speak French, too. And German. And Spanish. And Russian. And Portugese. And Danish. And Polish. And so on- The treaties of the EU must be written and transcribed into each language for each legislature to accept., and if Europeans truly wanted to become a single country, something like that could happen withing a century, but, again, this is only if Europeans wanted to do this, if the individual countries didn't want to become a single country, it would never work out, barring an outside threat forcing them to unite (like an alien invasion, or even just a very belligerent country.)
Thus: Comparing the EU and the US is like apples and oranges. They are intrinsically different.
Moving on: The topic of this discussion is whether or not the EU should become more like the US, not whether or not the EU is like the US. There has been no demonstrated need or reason why it should.
