What a great idea. Let's bring a bunch of disparate people together, who have inherently conflicting ideology's. Then let's have them focus on all the things that make them different, their individual cultures. Let's not encourage them to seek, find and foster the things they have in common, like the Host Culture.
Then once the foreign cultures begin to feel isolated due to lack of assimilation, let's set back and watch the destruction and mayhem...and pretend we can't understand why it is happening.
Multi-Culturalism...another in a long line of Stupid Leftists Ideas!
I guess the muslims got over 5% in their country and are demanding more than just peaceful coexistence.