Re: Blah blah free trade blah
That's the whole problem. The entire democratic basis of membership, at least as far as the UK is concerned, is a referendum about 40 years ago on membership of an organisation which is very different from the present set-up, especially the ever closer union bit.
Each time the organisation has changed the issue of popular approval has been ducked so a huge democratic deficit has been built up. Even worse, when the Republic of Ireland voted against the Lisbon Treaty they were told to go back & vote again until they came up with the right answer. And I think that in a lot of people's minds that is so objectionable that they'd be prepared to vote for an exit as a matter of principle even if the economic consequences meant going back to living in Iron Age round houses.
This situation could have been avoided. It would have meant getting popular approval for each stage of change across all the member countries. That would have been hard work. At each stage the negotiators would have had to come up with something which could have gained that approval. The end result might have been something rather different to what we have now. The membership might have been smaller. The role of MEPs might have been greater. But if an in/out vote were now being proposed against such a background the Europhiles would be quite laid back about it because there'd be a history of repeated approval over several decades.
The task for the EU is to get rid of that democratic deficit and retain the membership intact - give or take Greece.