Multiculturalism only works if everyone buys into it. Religion, regardless of which one, is inherently intolerant, which is why all multicultural societies are fiercely secular. While the majority of Muslims immigrants are perfectly fine with this there is a vocal minority that wants exemptions placed so that parts of sharia law can exist alongside the existing system. This quite frankly is complete bullshit and the majority needs to become more vocal than the ultra conservative types.