But I too was deeply moved by the book. It was the first (and last so far) graphic novel I've read. I related also because part of the story took place in Marquette, Michigan, as place I lived in for almost 10 years.
But, like the commenter, I sensed the story (somewhat autobiographical) is the typical route away from Christianity. It is a gradual disillusionment. A sense that there is a disconnect between what Christians say they believe, how they act in "Christian public" and how they act and think in their private worlds.
That's why I cringe when I heard in my old church, Ken Ham and on Christian radio that the way to stop the hemorrhage of youth out of the church is to brainwash them harder and brow-beat them earlier. Sad.
But I've linked the title to the original post here about blankets.