In a very real sense, Islam is not quite yet a Religion but, still a War Cult as the Church was before the Reformation. It was the un-reformed Church of Rome that brought to the world, Jews Murdered God, need a Pope or you got no way to talk to God, Burn heretics at the stake, Crusade to take back the Holy Land, and otherwise impositioned and Inquisitioned everyone by force or threat.
1,000,000 marching in Paris today. And at least, there is this call for Reform of Islam to include Plurality.
http://en.wikipedia.org/wiki/Religious_pluralism
As the name of the worldview according to which one's religion is not the sole and exclusive source of truth, and thus the acknowledgement that at least some truths and true values exist in other religions.
So, I hope you can see my point here. You are not in a Religion, by modern standard unless you accept and allow by law, pluralism.
So, my view is that the Papacy was not a Religion, only a war cult from to the time of Constantine until King Henry VIII formed his War Cult against Rome for the heart of Europe.
And though the Reformation was at it's infancy under Henry, and he hated them and had no hate for Catholics, still that collision of War Cults allowed some breathing room for Protestants that actually bought into the Universal Brotherhood message, in plain view but ignore in the Bible of Rome.
Thus Islam can be Reformed to accept Plurality of Church and state as well as other Faiths. And there will be Blood. Heads will roll. Maybe this is exactly what we are seeing unfold.
Thanks
@Hookabelly for pointing me to research this,