Because most (not all!)immigrants are skilless scum bags who are just jumping ship and out for everything they can get.
In short immigration is not fuuny :)
It's the people of a country that make it what it is, the more immigrants that come over the weaker those values become.
Becasue most immigrants just want to escape their crappy country and don't give two hoots about the one they move to, just it's economy and how much they can milk from it.
The fact is they are worth about 4pence each to the UK economy yet no one measures the very negative social impact they have on a small country like ours.
Or our chock a block roads or hospitals, but hey lets let another million Eastern Euro's to pick brambles and flick burgers, contribute to the crisis that the AVG house in the UK costs £172,000 (make that over 1/4 million after interest from the mortgage) or $332,000, and send a clear message to the youth that unless you're earning more than 28k a year you're better off sitting on your ass and wanking off to pop idol for a career because your prospects are work your ass off until you're 70 you might just pay for that 2 bedroom terrace in a shitty part of town that could have got for free.
That's the problem when you come from the UK, very few places to improve on.
The downfall of the UK is and will be mass immigration. I just want to put it down in HTML so I can say "told you so" in about 30 years from now when the impact of it becomes unavoidably apparent.
And the irony of this is I had a 90k job waiting for me in San fernando Valley and I could not get a visa becasue I did not have a university degree, even though I had done well in my field .