The negative aspects to unrestricted immigration are many and far reaching, not only in the UK, but in the countries who are losing valuable workers needed to construct their own infrastructure and public services.
Migration should also be curtailed for professionals who receive a free or subsidised education and decide to immediately move abroad for more money.
The negative aspects for the Britain, are the driving down of real wage rates, the shortage of housing, the lack of training programmes for our own young people, the state of the NHS unable to cope with the huge influx of migrants AND an ageing population, the prospect of Turkey being admitted to the EU and the likelihood of terrorists arriving on these shores unchecked.

Time to start "cutting our cloth" training and housing our young folk, cutting out waste and squeezing the spoiled middle class and the obscenely rich.

Putting the whole concept of "multiculturalism" under the microscope to determine for once and for all why it has never worked in practice and why many sections of society simply refuse to integrate.