Well the European countries have a right to form a union if they wish, just as the original thirteen colonies here in America decided to form a union some 225 years ago.
I actually think that the tide of socialism in Europe may well be reversed by this move and capitalism has a real chance to flourish over there with a common unit of currency breaking down all the old barriers.
There is a lot more that has to happen of course before there is ever a "United States of Europe", this is just the very beginning. It may well take another generation or so for this thing to play out.
I think the larger the scale, the less socialism there is. Basically, if you are a dutchman, it's easier to pay for welfare for a neighboring dutchman that it is to pay welfare for an italian.
I'll take those shapes! But then I believe in antiquated concepts like "states' rights" as well...