And on the issue of being a (to me) scary superstate, ask yourself which best fits nightmare future scenarios outlined in literature, film, science fiction etc - an ever larger EU or Britain as a fully sovereign country?
It's never going to be a superstate... there's no "EU Army", there's no "United States of Europe"... That is scaremongering. It is simply a collective of nations working in political yet independent unity on a post-war continent that has maintained the peace and encouraged economic progression for decades. Because of the massive cultural, linguistic and political differences of all members of the EU, the idea of a superstate without instant rebellions all over the shop is a ridiculous one.
There's nothing to be afraid of with the EU. We had a guarantee on the ability to withdraw in the event of a treaty change. The only thing the EU is, and would ever be, is a trading bloc with a veneer of political co-operation. The superstate fear is a largely British-only phenomenon that, to me, is a hangover from being the "head" of the Commonwealth. A mindset of paranoia.
As Chris Patten said; "People can't go on pretending that we are on a journey to some ghastly superstate. That's never going to happen. It's a dumb argument and we should thump it on the head."