I grew up under the thumb of Christianity; the form that only thinly veils their contempt for most of the world, and disguises hate as piety. I mention this because it absolutely colors my view of that community, and I want to acknowledge that up front.
With that said, what always struck me as odd is that Christians seem to believe Christianity is the source of their desire (and all desire) to do good. The source of morality, good will, selflessness, personal sacrifice, etc.
When I escaped from the bubble, the first thing that hit me like a train was that I saw all of these qualities - often in an even purer form - in people from all walks of life, including many atheists.
Over time, I came to realize/believe that these qualities are deep within humanity, and probably have a large impact on why humanity has progressed in a way that is unlike any other species alive today.
Religions are implementations of these underlying traits, not their source. It is for this reason that many religions share so many commonalities. They are invented by man, and stem from the same underlying realizations that many thinkers have had throughout history, spanning civilizations and geographies. And as man made concepts, they are just as susceptible to corruption and misuse as any organization.
With this framing in mind, I try to interpret the world views of religious folks much like I would a developer who centers their life around a particular language or development stack. There's often a lot of truth in what they believe, even if that truth is not unique to the particular implementation they chose.
The difference is that devs generally acknowledge that their path of choice is just a preference and not some absolute truth. Choosing Python over Ruby isn't going to send a person to hell, although you'll still find those "this is the only way" tendencies from the most devout.