I was a fundamentalist Christian, for about 5 weeks in 1996.
You being a fundi was an epic fail, or it would have lasted longer.
Yes, what soured me on the church was that the pastor couldn't explain a confusing Bible passage to me, and justified his failure
by saying something like "Sometimes when you chew on a piece of Scripture, it begins to chew on you," meaning, I guess, that
despite the Bible being the literal word of God, if you find something you don't understand, you can just ignore it! Wow!
I hated the whole hell-and-damnation thing, but the pastor's making a lame excuse for his inability to explain
the very book he preached about was kind of my ticket out of there.