Has anyone been in a bar or restaurant recently where the staff have not been mostly East European? High percentage in supermarkets too.
Ah yes, silly me! they do the jobs British people don't want of course!
The only slight problem I have with that concept is that a couple of years back I cannot recall hanging around in these same or similar bars/restaurants/supermarkets for hours waiting to be served because of staff shortages.
The reality is mostly that immigrants create their own demand. Add more people, you need more barmen, shop assistants, doctors etc to cater for them. The gross domestic product goes up, the quality of life goes down and, if you're really lucky, the standard of living goes nowhere.