To me, these little things are just signs of the times. People mock God and joke at the Devil, but then can't understand why abortion is legal, homosexual perverts have become protected 'minorities' and can get married, why atheism is the driving force behind the destruction of our public schools, and how the evilest force on earth, Islam, has managed to attack us and cause the greatest destruction in America since the Civil War.
You might consider being more discreet with your use of the word, "Islam," because of its meaning.
Today there was a news announcement on the radio that a rather credible threat came regarding terrorism planned for the USA, perhaps on Feb 5, which is the Super Bowl. The usual disinterest abounds. Therefore some critics of this apathy say that might be the best reason for Bin Laden and Co. to follow through with their plans. We might expect a lot of security clearances set up for the $4,000 seats. And what about air traffic overhead? Better watch out for incoming!
BTW if you want to make your point most noticable, call it "Mohammedanism." It is a following of Mohammed, but the followers deny that it is.