Where it's really falling apart for you is that you're trying to ascribe rationality to something that is entirely based on faith. Those two things, by their own definitions, are diametrically opposed.
Where it falls apart for me was the concept that people could live a good life and still go to hell because they didn't believe the right way, or at all. Or that an all knowing God wouldn't forgive those people simply because they were born in the wrong part of the world and weren't exposed to the "right" religion, yet pretty much all the world's religions all say some version of "If you're not worshipping OUR way, you're going to hell." Maybe not Judaism, I'm not at all versed. But y'all get the point. The next step for me was, "If that truly IS the mandate of an all knowing God, then what kind of God is he truly?" I find it unlikely a divine omnipotence would behave accordingly, and if so he can fuck off.
Therefore I find it much more likely no one here has it even close to right, and it's much more statistically likely this is a bunch of made up nonsense no different than the Greek Gods or worshipping the sun and stars. Or the message was corrupted by the prophets spreading the word and we're doing little right, or there simply isn't any God. Humans, historically, have to create something to explain what they don't understand or can't/don't want to comprehend.
Which is why I vacillate between agnostic and atheistic most days. Which becomes easier and easier as I continue to witness the cruelty of pretty much every church out there, these days.