@Luckygirl
Thank you for your detailed reply. Most Levers have been dodging the question.
I happen to agree with you about the size of the EU and the different needs of so many countries, but we were (and still are for the time being) one of the big players. The fact that UKIP MEPs don't bother turning up is the voters' fault. Others do a good job at representing the UK and are respected for it. I often read French and German newspapers and it's quite clear that we are valued. One side issue will be the future 'default' language of the EU, which up to now has been English. It's not true that Cameron came away with nothing. A four year delay on paying benefits to EU immigrants would have abolished any 'pull' factor and was a major concession.
The problem I see with some of the Eastern European states is that they are racist and right-wing. Unfortunately, UKIP allied with them, so one advantage to me of leaving will be that UKIP have had a major source of funding cut. Germany and other Western European states relied on the UK to fight off right-wing tendencies. I agree that it's difficult to have a 'one size fits all' approach to economics with so many different sovereign economies. The UK is, however, not affected like other countries, because we don't use the Euro. For that reason, we could never have been in the same situation as Greece. It's highly unlikely that Turkey will join the EU for many years.
It's questionable whether immigration has driven down wages, although I appreciate that it's perceived that way. The official statistics from the ONS don't show that they have, nor that 'they're stealing our jobs'. However, I think that politicians should have been braver in tackling the concerns head on. Even IF it's true that any of the concerns are valid, it's unlikely that immigration will decrease in the future - as Danila Hannan has now admitted. Over half of the immigrants to the UK come from outside the UK. The UK has always had full control of their numbers. Of the approximately 150,000 net EU immigrants, just over 20% come from the Republic of Ireland. We've had an agreement with Ireland since the 1920s about freedom of movement and that's not going to change. One of the main reasons the UK's net EU immigration has increased is that not so many UK citizens are moving abroad. There are a number of reasons for that, including economic depression in the EU and the exchange rate, which means the value of UK pensions and assets has fallen. One way or other, it's unlikely that immigration will fall. The number of asylum seekers and illegal immigrants might very well increase.