I spent three years working in careers advice and recruitment in Edinburgh from 97-00, by the time I left the job pretty much the only people in the area who didn't have a job were either unable to work, had no skills whatsoever or you wouldn't want them working for you. It was clear to me then that the situation was completely unsustainable if the economy and local businesses were to grow, new employees had to come from somewhere as they weren't exactly growing on trees, I couldn't see the situation improving...you can't have your cake and eat it.
Whilst I didnt see the BBC doc about Polish workers I heard that they were filming at a job centre in the morning, the Poles all trooped in got jobs and sitting outside was a chap swigging from a can of lager bemoaning the fact the were stealing all the jobs. I think this speaks volumes about British attitudes. He was hardly in a fit state to work if he was called.