seeing you are trying to nitpick a dead horse, gromit, let's focus in on the relevant bit of the Guardian article so you are unequivocally clear:
//the Conservatives' target of reducing net migration to below 100,000 by the time of the next general election in 2015.
The ONS said the reduction in net migration was caused by an 81,000 fall in the number of migrants coming to Britain in the year to September 2012. Immigration numbers fell from 581,000 to 500,000 over the same period.//
8100 is not a small number in one year, in anyone's book and I don't care if the jobs ain't there, profit whilst the sun shines and Cameron/May are looking to tighten things up further - wit the Sun Telegraph, Beeb News this morning, and that can't be too bad a thing as long as the specialised talent pool is not cut into.
They ought to think about a policy that the USA (Republican Party) was considering - immigration under licence, minimal insurance and health cover, reapply for a licence after 3 years, for permanent residence a much stiffer immigration formality in testing etc, employers to be heavily fined for any illegal immigrants found working for them and the kicker.....jobs are offered first to residents and the immigration licence only granted after, say, three months of no response from the locals.