Everyone [who believes in it] seems to agree it is inspired, but then many choose for themselves exactly which passages were inspired and which weren't, and in the process they may 'overlap' and (unknowingly) dismiss other believers' chosen passages. Which means - people are often choosing what is inspired, not God. And they all believe their pick of inspired passages is the correct one.
Some people, when pressed, will be content as long as they can keep Jesus - everything else in the Bible can be in a state of "wishy washy-ness" for all they care. But Jesus didn't write anything of his own, and if the quotes attributed to him were recorded correctly, he gave great importance to OT stories and history.
I can't help but think that if we had all grown up in a different part of the world, we would be discussing the veracity of a whole other God and a whole other book (or books) in intricate detail. And it would be equally evident to a lot of posters that that book was clearly inspired.