How dreadful are the curses which Mohammedanism lays on its votaries! Besides the fanatical frenzy, which is as dangerous in a man as hydrophobia in a dog, there is this fearful fatalistic apathy.
The effects are apparent in many countries. Improvident habits, slovenly systems of agriculture, sluggish methods of commerce, and insecurity of property exist wherever the followers of the Prophet rule or live.A degraded sensualism deprives this life of its grace and refinement; the next of its dignity and sanctity. The fact that in Mohammedan law every woman must belong to some man as his absolute property, either as a child, a wife, or a concubine, must delay the final extinction of slavery until the faith of Islam has ceased to be a great power among men. Individual Moslems may show splendid qualities, but the influence of the religion paralyses the social development of those who follow it.
No stronger retrograde force exists in the world. Far from being moribund, Mohammedanism is a militant and proselytizing faith. It has already spread throughout Central Africa, raising fearless warriors at every step; and were it not that Christianity is sheltered in the strong arms of science, the science against which it had vainly struggled, the civilization of modern Europe might fall, as fell the civilization of ancient Rome.
Sir Winston Churchill (The River War, first edition, Vol. II, pages 248-50 [London: Longmans, Green & Co., 1899])
The only thing I could add is from the individual point of view. In the end-of-the-world Protestant heresies it is important to note that when the end of the world does not occur, proselytizing increases rather than decreases and another date is set.
Uncertainty of faith is a common experience. Some look for external reinforcement in the physical world. Others redouble efforts and deny their doubts by become super religious with an unquestioning mind.
Some seek to prove their faith with vehemence--I think this is the way some Muslims react. Rather than face their doubts they attack the source of their doubts. Others facing doubt and despair engendered thereof are eager to die as jihadists or suicide bombers. Again, proving their faith,denying their doubts and ending their uncertainty with suicide.
I do believe the Muslims are facing a crisis of doubt and uncertainty. Soon this will crumble under as the individual doubters become the movers and shakers. In the meantime they and we suffer.
Never underestimate the need for an individual to find certainty where none exists. Out of this goal or need much evil occurs.