I'm sure you don't believe globalism will grow the middle class, Lustral. To say it may "prevent war" in Europe is about the closest thing to an excuse to be made, and it is a weak one.
EU is the richest econimic area in the world. Ireland is a rich country purely due to globalisation - in the 1950s when we had an isolationist agrarian economy we were dirt poor. You think Facebook, Google, Microsoft, Intel and all the other MNCs here (as a result of globalisation) do not contribute to the middle classes?
We don't have Nike factories here if you have some distorted image that all MNCs operate sweatshops in foreign countries.
As for the European Union preventing war, look at some history, learn some facts then rethink your response. I hate facets of the EU; but the EEC was set up to create economic links and interdependence between states that previously went to war (France, Germany, Italy...), later adding other European countries, then becoming more beaurocratic.
Non stop war for 2000 years followed by 60 years of peace since EEC (EU) founded suggests it prevents war.