What if hundreds of thousands or even millions of westerners drew and posted online depictions of the prophet Mohammed? Would that finally make the point that secular cultures are not bound by religious law and enjoy the freedom to ignore dogma as desired?
No, it would convince them (the morons protesting South Park, the morons who rioted over the Danish cartoons, and similar people) that all Christians hate Islam and the Prophet and therefore want to kill them. They are convinced that we would be just as angry as they are if someone made really offensive pictures of Jesus. They do not understand our way of life.
I think a better plan might be to give them those offensive pictures of Jesus. Make a million images of Jesus being humiliated, urinate on a few thousand crucifixes, and maybe then they will begin to understand that we are not like them when it comes to religion.
Of course, then we might have to work on the fact a large number of us have no religion at all. That might take a while.