Augean Stables has a nice analysis of the British Multiculturalism Problem. It is a brilliant vignette of the pernicious effect of multiculturalism. The ultimate danger, of course, is that now Britain has a formidable fifth column, thriving and virulent. For a little historical perspective, here is a description of the German American Bund of the 1930’s by Jim Bredemus.

The organization was soon filled with those calling themselves “Germans in America” and dreamed of the day when Nazism would rule the United States…, It is estimated that around 25% of Bund members were German nationals—the rest being mostly first or second generation Germans. Research indicates that most Bund members were of lower-middle class origin.Here is the rest of the article.

Hmm…, "Germans in America" sounds like "Muslims in Britain"- second generation immigrants, advocating that a totalitarian ideology come to rule the host country… If this sounds familiar, just try to imagine what would have happened had the same kind of multiculturalism had held sway in the U.S. Would we have approved the Bund because to all our citizens of German extraction, in Mizra’s words, their identity is the most important thing? Would they have been encouraged to express that identity through solidarity with the Nazis?
We demanded more of our German citizens than that. We went after those who crossed the line into intolerance and subversion of our basic tenants (remember Life, Liberty and the Pursuit of Happiness?). I am not sure of my facts but I seem to recall that Britain had a flirtation with sympathy for Nazism early on too. The limit of tolerance has to be that you cannot allow yourself the sloth and cowardice to tolerate the intolerable. Britain and the U.S. did not tolerate the intolerable in the 30’s thereby temporarily saving Europe from the fate that Lewis predicts for them now.