I don't buy this. What's lacking is the political will to secure the borders of the UK. If the UK is so porous then how come Germany wasn't able to stroll over in 1940. People have been told that's it's impossible to keep out illegals and through repetition and the evidence of their eyes have come to believe it. Meanwhile in 'nice areas' the only illegals visible are the domestic servants who would otherwise be unaffordable. If countries are as helpless to prevent immigration as is generally implied then we might as well dismantle borders altogether.