"Yet following the Enlightenment, the French Revolution, and the rise of atheism, contemporary Europe has become deeply secularized. Church attendance and religious practices are in decline; cathedrals often feel more like museums than places of worship; and Christian leaders find it difficult to convince their flock of their official social doctrines and values."
This doesn't work in nations in which a majority, or even a substantial minority, of the citizenry actively supports a theocracy. That's why an Enlightenment is not forthcoming in Saudi Arabia, Iran, Pakistan, and other such nations. Sadly, it's also why the Enlightenment is being eroded and is on such shaky ground in the United States.