They claim to hate us and yet they use our technology to defeat us. What kind of world are they imagining with no commerce, no communication, no tools developed after Mohammed died? Something like the darkest parts of Africa, or most of Haiti. That will be fun!
Sort of like a nasty, murderous, totalitarian version of the Society for Creative Anachronism -- the Middle Ages (Dark Ages in the case of the Islamofascists) with modern conveniences.