Are you trying to say that the lives of working class people in countries like Poland have got worse since their EU membership? I don't doubt that there are big businesses that have benefitted from the open market having thrown off the shackles of previous Soviet opression but there's no way the ordinary man on the street is worse off as a result. The reason many people from countries like this are leaving to come to the UK isn't because the EU has made their lives worse, it's because it's a shortcut to an even better life, if they stay in Poland or wherever they could have to wait years until the country manages to catch up to modern standards following EU entry but they have an instant right to freedom of movement so they can move elsewhere such as the UK to get all of those improvements instantly.
I think a lot of the problems you suggest in the more modernised, supposedly stronger countries within the EU, Spain, Italy, Greece, etc. have been caused more by the Euro rather than the EU or their own individual governments. Somewhere like Greece never stood a chance of keeping up with an economy like Germany's, so having the same currecy was always going to be a struggle for them, add in the level of corruption in their national government and you see a $#@! load of money wasted that should've been helping to catch them up. Sure there are now vast swaithes of the Greek population now struggling under this EU imposed austerity but it was bought about by their own failures and corruption, was the EU just supposed to turn a blind eye opening the gate for other countries to milk them in the same way? They can't just keep throwing them money, eventually someone has to be accountable.
