Islam vs Democracy

Why is separation of church and state such an alien concept resisted so fiercely by the Islamist leaders? . . . Islam from the outset united church and state. The prophet Muhammad was during his lifetime both a prophet and a Caesar. He established an Islamic society in which the sharia or holy law governed not only religious duties but also divorce, inheritance, interest rates, and the rules of warfare. The sharia is a comprehensive Islamic law that covers constitutional, civil and commercial matters in addition to spiritual or religious ones. -- Dinesh D'Souza, townhall.com, 5/14/07