I think one of the best ways I can put it to the European folks is... Imagine what it would be like if the EU was actually in charge of everything. Now, admittedly the US is homogenized linguistically, and the cultural homogenization is ongoing (I'm speaking more of regional culture then I am of ethnic/nationality culture), but the general principle of there being way to many people to represent properly is there.
I didn't really understand everything you were trying to say either, but i can tell you that the EU is a fucking fuck up (if i may).
The EU gradually takes away all thats left of sovereinty to each EU member state. The problem with this is that a EU country, lets say France, can only change an international, immigration or economical law if its accepted by the European commission. Say an electoral candidate makes a few promises before the election, once he's in office he goes "oh, sorry, the EU refused to grant me the power to hold my promise.. oh well, i tried!". Thats what the last president (Chirac) shat to our faces, saying he'd lower some taxes for certain shops and eventually couldn't because of the EU. Also, the EU gradually exports French agriculture to Eastern European countries, the new EU members, and that includes wine! In terms of immigration, if one EU country legalises illegal immigrants, these immigrants become legal citizens in all EU countries and can walk around wherever they wish, which is a bother for the countries which are trying to lower the immigration rates (hence immigrants chose the "nicest" EU country to be legalised citizens, and then they go to the EU country they originally wanted to immigrate to... most victims of this are England, France and Germany).
So, in brief, if a EU country wants to put in a law which could make their economy grow, or help out the population in need, the OTHER european countries have to accept it, and they of course don't care much about the political problems in other countries.
Hence, the USA at least has some degree of sovereingty, it can at least decide what law is good for their economy without having other countries refuse it to them because they don't profit from it. (although i'm sure each state has restrictions towards the central government)
I'm against the EU, i think its a bother. I forgot the true numbers but France gives a contribution of 6 billion euros to the EU each year and only receives 2 billion (not sure of the numbers but its something like that). Loss of money. And i don't believe the EU helps France or England, or Germany or other already rich european countries. Its usefull to help the less rich european countries boost their economy, but i think its a drag for the richer ones because we pay for the "poorer" (i'm glad for them actually but the other disadvantages of the EU make it intollerable).
Most citizens of the EU in western europe, and the governments, will say that their country couldn't survive, or wouldn't be that rich, if it weren't for the EU. I say thats bullshit, and its the capitalist, globalist propaganda which puts this idea in people's mind so the EU is here to stay, and with that; their interests. Norway is a good example of how a non EU country can have a very rich population without being enslaved to the laws of Brussels and the EU bureaucrats.
In France, most victims of the EU are farmers, working class (who see their jobs leave to Eastern Europe or to cheaper immigrant labour, and who are victims of inflation caused by the EU cause we can't change laws to deal with it), people attached to their regional culture (cause EU = globalisation and conformism)..etc.. so its not surprising that these guys mostly vote for the nationalist party which is very anti-EU and rightfully so (in my humble opinion).
(sorry for that long post, i got caught up here

but there are so many things to say, i even deleted a lot of what i wrote so it wasn't too long)