Theodore Dalrymple discusses Integration and “Savage Liberalism”:
My mother arrived in Britain penniless, but fortunately for her—and for Britain—no one sought to persuade her that she need not learn English, and no one set up expensive and ineffective services for her in case she did not. She was not obliged to give up her tastes or conform in private respects, but she was expected (de facto) to blend into society as much as possible, rightly and reasonably, in my opinion. There was no ideology seeking to Balkanize the sensibilities of the population, enclose people in ghettoes and so forth, in the process acting as an employment opportunity for hordes of officials and bureaucrats.Although it is not a complete answer, a flexible labor market is very important, because there is nothing like work to integrate people.