Immigraion is a tool that if abused kills the user and destroys the tool. The result achieved is very much in the hands of the craftsman that uses it. Add to this the political capital generated by the subject and you have a tremendous probability for a industrial disaster. In many countries the user is unclear; the user of course, should be the nation, the people as a whole, but often it is really a small elite, whose use of immigration is just to meet short term financial gains like distorting the labour market to keep wages low for immigrants and the native population. When it should of course be the opposite and provide workers in a growth period, who have clarity in their immigration contract, that they will return when the growth no longer sustains them. This is honest immigration, it avoids the one way ratchet of permantet relocation immigration, based on non permanent driving conditions . After all wasn't the EU about freedom of movement, was it really about mass relocation? Yes there is long term immigration, but again this needs to be rate matched, so that an automatic, natural assimilation takes place of the immigrant's free will, without the forced integration nonsense, and that the input provides the nation with a long term sustainable basis. Now where do the disaters happen. Well they happen when there isn't a craftsman, or people take a factual situation, where ther is a population of immigrants and try to turn the clock back. This is where the human rights abuses start, this is where the cleansing finally rears its evil unacceptable head. This is where the EU (including Britain) is heading for unless there is 1. A realisation that they need a craftsamn to use the tool in the future and 2. There is no turning the clock back, as it is inhumane. The problem for some Polish is that they are looking for an EU contract of a safety net, to relocate when the conditions are good, then stay there. The one way relocation!