We are not a rational species, not at all, just look at the news and you will see this. We can rationalise but that about it.
As for religious faith, its inbuilt. Richard Dawkins took the Persinger god helmet experience and was given a test to measure his religiosity, he had none at all which amazed the testers, they said that's very unusual to have no religious "instinct" at all.
According to Everett, the Pirahã have no concept of a supreme spirit or god;[9] however, they do believe in spirits that can sometimes take on the shape of things in the environment. These spirits can be jaguars, trees, or other visible, tangible things including people.[6]: 112, 134–142
We are not a rational species, not at all, just look at the news and you will see this. We can rationalise but that about it.
As for religious faith, its inbuilt. Richard Dawkins took the Persinger god helmet experience and was given a test to measure his religiosity, he had none at all which amazed the testers, they said that's very unusual to have no religious "instinct" at all.
A belief in a god is likely learned from others.
https://en.wikipedia.org/wiki/Pirah%C3%A3_people#:~:text=According%2520to%2520Everett%252C%2520the%2520Pirah%C3%A3,visible%252C%2520tangible%2520things%2520including%2520people.