By John L. Esposito , Special to CNN February 28, 2011 -- Updated 1649 GMT (0049 HKT) STORY HIGHLIGHTS John Esposito says Islamic organizations have not led protests in the Arab world He says protesters want democracy, with its greater freedoms and opportunities In Tunisia, Syria and Libya, mainstream Islamists are part of the political landscape, he says In open democracies Islamist movements will be just one of many parties, he says John L. Esposito is professor of Religion and International Affairs and director of Prince Alwaleed Bin Talal center for Muslim-Christian understanding at Georgetown University. His most recent book is " The Future of Islam. " (CNN) -- Hosni Mubarak's resignation resurrected a tsunami wave of articles and commentaries on whether Egypt's Muslim Brotherhood would now come to power. And yet, few have asked why the primary leaders of grassroots revolt in Egypt and across the Arab world curiously have not been Islamic organiza