There is no country in Europe which has an evenly distributed population Goldie. It is as if NRW were to say 'we have the highest population density in Europe' and use this as a reason for the whole of Germany to fence itself off. By the way the German states do have their own laws, as does Catalonia - in fact the German states can all sign international agreements, as long as these are not detremental to the Federal Republic. One of the biggest problems in the UK. is that there is no national registration system. When you move to Germany (or move house within it), you are required to register your place of residence at the local town hall. Nearly all payments in Germany are by direct bank transfer - so you must have a German bank account, a health insurance, and registration of your residence before taking a job there. All of this acts as a filter, because a certain command of the German language is necessary for all of these. The problem is that many people think that Britain is the easiest place to pick up semi legal, casual, cash in hand, work. Also there is the language - people move where they think they can be understood, and as long as English is a World language it will be a magnet for people regardless of it's economic success.