Nearly all of them seem to boil the Christian faith down to a sincere kind of "hunch" set of criteria which, ipso facto, includes the denial of the Catholic Church. Never mind that everything that they love most about the Christian faith came directly from and as a result of the unwavering protection of the dogmas, doctrines, and tenets by the Magisterium of the Catholic Church for those 1,500 years prior to the "Reformation" (and on to this present moment). They set great store in the individual conscience as a trustworthy guide and stand by their pastor so long as (a) he doesn't commit an egregious act like shop-lifting or adultery and (b) he strokes their egos sufficiently.
The scapegoating of the Catholic Church is a given: it goes without saying that papal authority and the grasping, power-hoarding princes of the Church are evil. But is it obvious that Our Lord came to found a Church, an ekklesia, large enough to serve all the world's peoples, and not just our little flock with its quaint Midwestern quirkiness and pot-luck suppers?
No. It's not obvious.
And that makes me sad, sad because whereas I, too, believe the Catholic Church is filled with sinners, by definition, I believe that God the Father, God the Son, and God the Holy Spirit, One in three, Blessed Trinity, established a single Church for ALL peoples of the world. Christ did not come to found a Fellowship here and there, a Brethren hither and yon, that couldn't possibly dispense sufficient grace for all of God's children on earth.
I was welcomed into the Catholic Church, historically the Headwaters of God's grace in our world. I had to enter because I experienced Jesus' Real Presence in the Sacrifice of the Mass as no where else. I am hooked on Jesus. I just can't understand why others would rather scapegoat Mother Church than come home to where we all belong.
I could not understand why these romancers never took the trouble to find out a few elementary facts about the thing they denounced. The facts might easily have helped the denunciation, where the fictions discredited it. There were any number of real Catholic doctrines I should then have thought disgraceful to the Church . . . But the enemies of the Church never found these real rocks of offense. They never looked for them. They never looked for anything . . . Boundless freedom reigned; it was not treated as if it were a question of fact at all . . . It puzzled me very much, even at that early stage, to imagine why people bringing controversial charges against a powerful and prominent institution should thus neglect to test their own case, and should draw in this random way on their own imagination . . . I never dreamed that the Roman religion was true; but I knew that its accusers, for some reason or other, were curiously inaccurate.