"But this rational and mostly safe world is the direct product of Christian thinking, which demanded that people be grounded in reality or at least trying to be."
This is simply not true. Before the rise of Christianity, the Romans believed in a round earth. That changed after Christianity when the world literally took a step back. That's why it was called the dark ages. It wasn't until the invention of the printing press that people started to interpret the bible for themselves. This led to a revolt against the church. Eventually, people just dropped christianity into a mindless ritualistic belief system. They believe in it very loosely.
What doesn't make sense to me is why god would reveal himself to a handful of jews in the desert and no one else. The world is a massive place and only this small tiny group of the world's population received the truth. How does that make sense? How is that fair? Even if the bible could somehow be taken to a different part of the world, people of other cultures couldn't even translate it. Plus most people were illiterate which opens up the gatekeeping culture. That gatekeeper culture has lasted for so long (thousands of years) that people still think they are not qualified to interpret the bible. Why would god reveal holy scripture that average people can't interpret?
Also these stories from the bible like Noah's ark and all the animals he gathered up for a 40+ day global flood doesn't make sense either. Religion is simply not logical. It is about faith.