It's not racism, at worst it's prejudice. But it's not about making fun of your god, It's about exercising an inexhaustible right to free speech and spitting into the eyes of those who would take that from you through violent means.
As a muslim you can't make an image of the profit, I'm not a muslim, so If I want to get a pen and draw, that's my fucking business, and anyone else for that matter, no religion has the right to dictate shit to any non willing participants.
And before you go pointing out any hypocrisy in the US, at least we take care of our insane violent cults
http://en.wikipedia.org/wiki/Waco_siegerather than let them run amok in other countries.