this isn't an answer to my question
Like I said, you're not ready for an answer.
I'm just explaining why some christians are not holding on to every single word in the bible but focus on the main message told by Jesus (which you find unacceptable, so it seems).
You don't accept that because to you (if I understand you correctly), you either accept it all or you don't. I understand why you accuse some of cherry-picking but I think you're doing it too.
(you're thinking too much in extremes for me, mate
Let me try again as I was taught (so, I underline, I'm only speaking for my experiences as a former catholic):
My teachers said the following about how the OT was written. It's based on accounts told orally for ages and ages from generation to generation, from parents to children to their children to ....
Finally, people decided to write all these accounts down but to frame it, they used their own social context.
For the NT and to write this down, people used more direct accounts and more direct witness accounts, namely by the apostles Matthew, Marc, Luke, John. You can see how very human it all is because those 4 witness accounts differ at times just because their perspective differed.
This more direct (and thus, more reliable) account is, as I always understood it, the main reason why christians will hold on to the NT more closely. That and the existence of Jesus in the NT.
I'm sure you'll dismiss this as well but I've tried.