A fast google will explain a lot.
London's population is at about 7.5 million.
There seem to be around 88,000 people from Bangladesh and 67,000 from Pakistan.
So, with 150,000 middle eastern people (Wide acceptance of the middle east) out of 7.5 million - How exactly does than make an occupation?
There are an estimated 1 million Muslims in London at this time. And there are apporoximately 200,000 Jews. I wonder who are the most productive, the most beneficial to the British culture and economy? The Muslims? Or the Jews?
Is there any instance of Jews in any place giving preference to Jews or the Jewish religion other than insuring a majority on the Knesset to preserve Israel as a nation? Is there any country in which there are a majority of Muslims that does not give preference to the Muslim religion and that do not impose restrictions on all others?
I am guessing that if the entire population of non-Muslim Israelis was transferred to Great Britain, it would of course strain the economy to accommodate such a large influx of new immigrants, but once everybody was settled in, the U.K. would still be the U.K. and would prosper. I cannot imagine such a large population of Muslims transferred to the U.K. having the same positive benefit given that Muslims, but virtue of being Muslim, are committed to making the entire world subjct to Allah and Shariah Law.