The French Enlightenment also brought the Jacobins and their ilk--men as bloody-minded as Torquemada. I wish all would appreciate how much the world owes to the United States and the genius of the Founding Fathers. We owe so little to the likes of Voltaire, Rouseau, and Paine that James Madison recommended none of the writings to the University of Virginia for its library. Luther and Calvin are suggested, but so are Aquinas and Duns Scotus.
I do agree with your assessment. Essentially, two threads arose out of the Enlightenment: the utopianism of Rousseau, and the rationalism (for lack of a better word) of Locke. Our Founding Fathers followed Locke; the French followed Rousseau. Both with predictable results.
My point was, prior to the Enlightenment, there was little freedom, democracy or liberty in any country, Catholic OR Protestant. These were products of the "good" Enlightenment, not any particular Christian denomination.