While I recognize that support for “democracy and freedom” is substantial, within each Arab national society — that the middle class is not a nothing; that each economy depends on it — I doubt this “faction” can prevail. Worse, I think we are watching its final, hopeless bid for power.
The key fact, in Egypt (paralleled in Yemen and elsewhere), is that the Muslim Brotherhood has not declared itself. The Islamists could put vastly more people on the street. They could subvert the loyalties of policemen and soldiers, who already resent the moneyed middle class. They could generate just enough heat to make large districts of Cairo and Alexandria, now simmering, boil over.
But instead, they are playing neutral, watching those policemen and soldiers put the demonstrators down, while most of Egypt remains quiescent.