The Guardian:

Bower goes into detail about the pursuit of an open market by the Labour government, which allowed the purchase of many of the UK’s power stations by state-owned foreign companies – without any attempt at reciprocity. He also traces the surprising source of Labour’s open-door immigration policy to a junior minister, Barbara Roche, and an academic called Sarah Spencer. Their view, according to a passage serialised with glee by the Daily Mail, was that “immigration and multiculturalism brought positive good” and that there was therefore no need to keep numbers down.

My emphasis.  I had always wondered what drove the desire for immigration.  It turns out it probably wasn’t a desire for cheap domestic help and plumbers but a desire to do good.  Hmm.