Main points being that Muslims view Mohamed as the perfect man that must not be depicted in image or cartoon. The Koran ordains Muslims to emulate the life of this "perfect man" because though human, he lead the perfect life. Muslims arrogantly put forth that Muhammad is a most worthy example for all mankind. Thus even Christians, Jews, Hindus must surely admire him and the example of his life.
The ultimate insanity of Islam shines forth when they demand that infidels in far off lands, with scant Muslim minorities must knuckle under to the Muslim **ummah when it comes to their rage about Muhammad cartoons. Ones that gently mock him. Since when am I ruled by Islamic law? Since when is anyone in Europe, Canada, the USA governed by Islamic law that says Muhammad images are forbidden?
**The ummah is the worldwide Muslim community
You begin to be ruled by Islamic Law when your country makes apology on behalf of your country for the cartoons and deplores them because they offend the Mussulmans.