The part about creation, the fall, the flood, babel; yes, I agree, we cannot observe that. Just like you can't observe the big bang or abiogenesis or macroevolution. There should not be a double standard. We are also going to agree regarding science when it is observable and testable. But we also need to agree on the weakness regarding historical, unobservable theories.
Tell ya what, I'll even throw you a bone: I've been thinking that it may be possible that the Bible does have an error worked into it over the years based on entropy. How about that for full disclosure and honesty?
Typical fundibot dishonesty. We have observable evidence of the big bang, evolution and abiogenesis, but for the early stories of the bible we do not have such evidence. These sciences are just as observable, testable, falsifiable,... as any others. The evidence for the biblical stories (from earlier works) is that they are variations of oral tradition metaphorical teaching stories that have a moral plot.