Indeed the “there oughtta be a law” crowd has failed to notice what government they are now asking to do it.
The French found it best to ignore it.
And reasonable people could certainly point out, with charitable love as always, how Charlie H. is mistaken.
Observe that you are worrying about some cartoonist not being able to express himself because of imaginary rights that he thinks he has, while the case on hand is extra-judicial execution of 12 people, with, no doubt, more to come, and entire towns overrun by gendarmerie.