Ultimately, I believe that WHY that "cartoon" of muhammad with bomb turban is so "offensive" to muslims is that it's so accurate, so realistically to the point of the very awful problem. And all the "outrage" serves to prove again and again to my view how out of touch they are with their problem, which is why it's such a bigger problem to the rest of the world (that islam cannot see the obvious and self correct and instead seeks to destroy that which speaks/depicts their obvious "problem").
It's not looking so much like "religion" to me but ideology without "religious" context...because there's no set of principles of reason, more than anything. Their ideology runs counterproductive to anything Supreme aiding and assisting those who 'believe' and fails the ethics test time and time again.