Multiculturalism, regardless of what German Chancellor Angela “Ja! Ja! Ja! Mein Gott! Dein Schwanz in meinem Arsch!” Merkel thinks, is not an end in itself. It is rather a consequence of the simple fact that people move around the world, and this has grown exponentially as communication and transportation has become easier and cheaper. It is unlikely ever to diminish.
Where individuals move, there is a tendency for them to absorb at least some of the culture they occupy. Where groups move, the resistance is greater, such as the behaviour of the British in the former empire. Orwell’s “Burmese Days” has a brilliant image of the traditional English garden, resolutely cultivated despite the searing heat of a Myanmarese summer, and by turns either wilting away or erupting into exotic life.
So the question is really the extent to which individuals and groups should surrender their cultures when they move abroad. This however runs counter to the worldwide growth in the perceived value of localised cultures (itself a reaction to the Americanisation of the world). In the UK the most obvious manifestation of this has been the Welsh and Gaelic languages, which are now actively sponsored where before they simply lived or died on their own terms.
So rather than fretting over multiculturalism per se, do we think that it is a good thing to support diversity, or do we think the ideal would be everybody being pretty much the same, and other cultures should only be viewed as relics in a museum or mere curiosities to be mocked and distrusted?