As to Charlie Hebdo principles beneath oft-mixed metaphors, I liked their essay re a Nov. 11 2011 cover, here.
It's easy to adopt simplistic polarities about their work (or doubt even? the above POV of their perceived sentiments, ) 'Throwing out baby with the bathwater', comes to mind. Onion layers.. but nothing like transparent as The Onion.

The charge of siding with the bullies, (those piling-on these newly arrived folk with some at-odds mores that jar French culture) seems valid, as does the necessity of Hebdo Opposites meantt. (This addresses all us un-acculturated. The Positive is advanced in the 11/'11 essay. Put it all together and por moi, two aspects result:

Yes, Charlie Hedbo's style is confounding even to many countrymen and Francophiles, thus "flawed". How normal.
Yes also, a prime Principle withstands all these nuances, especially by '15. Islam's extreme mores contain more contain duties with the force of Commands to the faithful: enforced by the many Capital-punishments allegedly via their Prophet: for blasphemy ... (right unto--even trying to Leave Islam!)

That Principle and its philosophy of ~democratic, secular Rule requires that Speech is not to be curtailed except in those obvious matters like yelling Fire! Hurt feelings or ridicule are prices for that freedom.

The more impoverished the Muslim, the harder it seems for such to Grok this POV and then to See: that Islamics may believe what they like (or will bear) but they can't coexist, out-numbered, out-gunned on the same planet. If the hugely powerful Leaders prove unable to curb-the-Dogma of the young, broke, restless (and intentionally-ignorant) of these un-tenable tenets? the rest of the planet won't tolerate perpetual religio-assassinations, Period, IMO. Irresistible Forces/Immovable Objects? (Hardly; plain old material physics does it, as always.)

Seems just another day in the ongoing saga: Just How many One-True-Gods does it Take? to screw-up daily liff for Everyone? (One seems too-many.)