This issue now seems to be raised at least once a week and my views are widely available in other answers. However, before we all get carried away with the euphoria of having 500,000 Poles here now to do our dirty work consider this hypothetical scenario.
An English man with a wife and two children works in an English factory. He is unskilled and earns about �350 a week (�17,500pa). They are by no means rich, but they get by. He sees that the in Utopia (a couple of hour�s flight away) for doing similar work, he can earn �5,000 per week. England has recently joined the Utopian Community (a federation of states) and he is now allowed to go to live and work there. It will cost him about �1,000 a week to rent a room and feed himself, but he will still be left with more than ten times the wages he earns here. Utopia is said to be suffering a huge shortage of unskilled labour.
He decides to go, leaving his family in England. When he arrives, things are not quite as he was led to believe. He has trouble finding a job (Utopia has 1.5m unemployed of its own) but he discovers that if he offers to work for less (around �4,000 per week), employers will choose (understandably) to employ him rather than a Utopian. He manages to get a job. He is a little disappointed not to earn quite as much as he had expected, but no matter. He still has eight or nine times the disposal income he had in England. The Utopian worker he displaces begins a life on state benefits as this is more attractive than working for less than the going rate. Many other Englishmen seeking their fortunes are not so lucky. They are unable to find a job. With little money (their savings do not go far when you have to pay �1,000pw to live) they end up on the streets of the Utopian capital.
(Cont�d - don't miss the next exciting episode!)