Islamist Values

In his book, Still the Best Hope, Dennis Prager describes three primary value systems presently vying for world authority: Islamist, Leftist and American. 
He states, "The three ideologies are incompatible."
According to Prager, "Islamist does not refer to the 1.3 billion people around the world who identify with Muslims. I am referring to those within the Muslim world who wish to see as much of the world as possible governed by Sharia, Islamic law.
The word Islam means submission to Allah, and that submission is manifest by adherence to Islamic law in a state that is governed by Sharia, and whose leaders are Muslim clerics, though strictly speaking, there are no clergy in Islam."