Polycentrism in Islam, like no core state, undermines unity

Evidence

An Islamic core state has to possess the economic resources, military power, organizational competence, and Islamic identity and commitment to provide both political and religious leadership to the ummah. Six states are from time to time mentioned as possible leaders of Islam; at present, no one of them, however, has all the requisites to be an effective core state. — Samuel P. Huntington, The Clash of Civilizations and the…, 481