The Islamic radical is portrayed as the cultural equivalent of the Western nihilist, eager to forget tradition and supplant it with his own vision. It is a movement contemptuous of the common, the workaday and human failing and worshipful of the superman.
Ironically one of the problems Husein implictly identifies is that Islamic radicalism is virulent precisely because it treats the Koran as a literal. Unlike the Islamic societies whose mental compilers have been modified by long acommodation with Christian, Jewish or Pagan neighbors -- a mental compiler softened by "centuries of context, nuance, history, grammar, lexicon, scholarship" -- these new radicals interpret the Koran like an "engineering manual". Word for word. And the result is a horror.
In many ways both the struggle against utopian Communism and radical Islamism can be seen in terms of common humanity trying to regain the control of central myths which have been usurped by hierophantic maniacal cultists. Good luck to us all