As a recent University College London study showed, the average profile of a recent migrant is more likely to be a young graduate from western or eastern Europe working in the financial, tech or creative services than our more traditional image of an unskilled migrant labourer.
Labour only had a clear lead over the Conservatives among 18- to 34-year-olds, voters in social class DE (the "semi-skilled and unskilled manual occupations, unemployed and lowest grade occupations"), among private and social renters, and black, Asian and minority ethnic (BAME) voters.
They had to recruit and train many unskilled Sierra Leonean staff to work as hygienists and in other support roles.
Children in their early teens are often unskilled and don't know how to avoid injury, and between the ages of 13 and 18 their weight and height may differ dramatically within a squad.
Some senior party figures had wanted these messages highlighted alongside the NHS in the Heywood campaign, and would also now like Labour to raise openly in Europe questions about the long-term challenge posed by the free movement of unskilled labour across the EU.
Migrants did not increase unemployment, even among unskilled workers, nor make an impact significantly on wages.
However, in unskilled British hands, the results are often, even if just millimetres thick, doughy, dense and bloating.
The idea popularised by the Tory tabloids, that average public sector wages (not the plump cats whose pay Brown froze today) now run ahead of the private sector, fails to explain that its pool of unskilled workers pulls private sector averages down.
Neither can a story about his Tory opponent Craig Mackinlay owning a website that encourages Hungarians to come and work in Britain,; Ukip has made curtailing unskilled immigration from eastern Europe the key plank of its campaign.
More people in this study reported difficulty in having an orgasm because their partner was unskilled (25% of women and 7% of men).
Never mind the fact that social mobility is as much about making sure young people don't slip into unskilled jobs as it is about making high court judges.
