I know that there are people moving up to Scotland, ongoing. If the trend keeps up, there will be more Englishmen there than Scots in about 10 years.
The question should be "what is the British government doing that causes immigrants to move to the cities?"
Here in the United States our cities are basically socialist havens that invite the underclass. Think about it: Government jobs, food, housing, schools, transportation, day care, health care and social services - all governemnt run and paid for by thoses seeking to leave. If you want to see what the socialist system would look like in America, just look at ANY inner city.
That's why people are "quitting" the cities in the U.S.
I was in Londonistan 10 years ago. It was awful. It is truly a Middle Eastern city....