This thread (and the associated poll) is idiotic and puerile, it shows an astounding ignorance of theology and politics.
Protestant Christianity, originally a movement for reform within the church, is now much more ideologically rigid than the Catholic Church. In fact, Catholicism (and Anglican protestantism, which is theologically Catholic) is possibly the most reformed religion in the world. Well before the current Pope took over, the Catholic church has been making move to reconcile Catholic dogma with modernity (including accepting that creationism was scientifically invalid before this Pope said so). Given the Catholic church's spotty past, I'm sure many on this thread (if they were alive at the time) would have argued that Catholic theology is intrinsically problematic and incompatible with modern society. Protestantism, supposedly theologically modern, has remained stolidly stuck in the past- particularly, Protestantism of the american, evangelical variety.
As a Hindu, who follows a religion that has no element of history centrism and which allows, essentially, an infinite spectrum of beliefs, I have witnessed an increasing narrowing of what it means to be Hindu and the imposition of a definition of a 'true' Hindu identity by a few groups. If these thought processes take hold, will it mean that the problem is Hinduism?
The problem in the Islamic world is not Islam. It is a series of political failures. One can easily imagine Muslims following a modern, progressive version of Islam based on the theologically sanctioned power of interpretation that they are allowed. Extremism emerged in the Islamic world not only as a consequence of ultra conservative Islamic regimes but also as a consequence of secular dictators who crushed the opposition and left no room for moderate conservatism (the Baathist dictators are the most obvious example). Once there is no room for moderate conservatism, it is only the most zealous, most extreme elements that have the motivation to survive.
The question we have to ask ourselves is, why have the people of the Islamic world failed to organise themselves politically in a manner that allows for free societies, where the entire spectrum of moderate views (liberal and conservative) simultaneously find political representation. All social structures and institutions, from tribal allegiances, class hierarchies, gender relations etc. need to be examined.
Imagine if the political class in India had failed to overturn the 1975 emergency. Imagine a Indira Gandhi led dictatorship that left no room for the moderate right. I'm pretty certain that sections of the right, deprived of fair representation, would have tried to exploit a rigid interpretation of Hinduism in a desperate attempt to reclaim political ground. It is not the great pacifist, moderate religion, Hinduism that saved us but our ability to take corrective political action.