"What is wrong with “multiculturalism”? That depends on how you define it. If you mean “tolerating or celebrating the customs of people from another land,” it’s fine—and desirable. The U.S. would be bland and uniform without its many immigrants, their celebrations and holidays, their food, their politics, their philosophies, and so on. But when multiculturalism involves importing antidemocratic ideas into a democratic culture, then it becomes problematic. The kind of “multiculturalism” that Charlie Hebdo opposed, and wished to be dissolved by “French” values, was Islam’s veneration of sharia law, its institutionalization of the subjugation of women, its calls for the death of apostates, gays, and adulterers, its belief in corporal punishment for criminals, and the Muslim habit, in some places, of patrolling the streets, looking to find and admonish young Muslims partying, drinking, listening to music, dancing, and associating with members of the other sex. Fun is a no-no.
In other words, the more “enlightened” French are uncomfortable with those tenets of Islam that conflict with the values of the Enlightenment; and it’s just too bad if asking Muslims to conform to those values makes them uncomfortable. By all means keep your Ramadan, your delicious food, your clothing (except, perhaps, the veil), your prayers, your mosques, and so on. But don’t you dare try to quash freedom of speech, beat your wives, kill your daughters, or try to practice sharia law in France."
http://whyevolutionistrue.wordpress.com/2015/01/11/reza-aslan-blames-charlie-hebdo-massacre-on-frances-inability-to-tolerate-multiculturalism/
So how many people are Charlie Hebdo? Really. It isn't just about freedom of speech. It's about saying something meaningful in spite of it being difficult and against the consensus.