Frankly I don't see how the WHY of everything religious can be explained except by science. I've engaged with many, many theists ov er the decades who know what they believe, but have no real clue why they believe it. This is what I find most interesting, is the religious person being asked questions they don't ask themselves.
Yes. Because it's not about the why,
to them. It's about the how. You and I ask about the whys because that's what we care about. It's how we think. It's how we move through the world, conceptually. But not everyone thinks like this. Nor are they 'supposed' to. Some people think by rote. A lot of them, in fact. It's how they move through the world, conceptually. Others do it by instinct, and intuition. They don't ask 'why', because they don't care why. They're just getting from point A to point B in life.
Yet most theists DO think their beliefs represent reality even though under scrutiny the ideas are typical contradictory to what we do know of reality.
Under YOUR method of scrutiny. But not by their method of moving through the world. By their method, what they believe, works, and that's all that matters. It's why they believe it.
Religious faith is notoriously unreliable yet theists keep falling back on it to justify their beliefs.
You're only saying that because you are applying your standard of reliability to someone else's method of moving through the world. That's not very logical, though, is it. It's mostly just egocentric.
I'm not that kind of theist, either. But over the years, as I have confronted these same issues with it as you, I have come to realize that I'm not in charge of how the rest of humanity chooses to move through the world. My way isn't even the best way. It's just mine. You think science and reason are the only 'right' way to move through the world, but they aren't. As an artist I have known this for a many years. Subjective intuition is a fantastic method of moving through the world, and is often far faster and more effective than plodding reason and experimentation. So is living by rote in many instances. It's why people in so many different life endeavors
train for it.
As an artist I had to learn to try not to be so myopic, and to let myself use these other methods of moving through the world when they worked better. And they do work better, quite often. You'd be surprised.