Only going to respond to the end of your post at this time.
Ok, but that sure makes justifying in depth responses to you hard to justify.
I have read the Bible, cover-to-cover, on more than one occasion. I am better versed in the Bible than most of the Christians who I personally know. (Then again, I'm better versed in Shakespeare too. This just says something about the fact that I like to read, and I retain what I've read.)
Ok, I will credit you with what you claimed until I see sufficient evidence that it isn't true.
If you were to read the ancient Sumerian "Epic of Gilgamesh" (I have), which has a featured character Noah (under the name of Utnapushtim), you would find most of it to be nonsensical, although it is a great human story. Oh, yes, chase down and kill the monster "Humbaba," but you would say, "there's no such thing." Or weep with Inana when Gilgamesh and Enkidu kill "the Great Bull of Heaven" you would think, "poor, silly Sumerians, so unsophisticated to think heaven had a bull!" And you would think those things, for the simple reason that you were not indoctrinated into the religious beliefs of the Sumerians -- who would have taken the epic seriously.
I am not sure whether your making a parallelism argument or suggesting that all the books that contain mysterious things must all be true or all be false. Since billions believe the bible is literally true and pretty much no one believes the Epic of Gilgamesh is true they must not have the same provenance (for lack of a better word). You might as well claim that if Harry Potter isn't historically reliable then neither is Thucydides history of the Peloponnesian wars.
It is the same for me when I read the Bible. I have not been previously indoctrinated by religious belief in God, YHWH, Jesus, Satan or all the other stuff. So I read the Bible with a mind free of that prejudice, and can see it as it is. I read it is as literature, and I find it often stilted, often silly, often completely incorrect, often filled with errors that no competent editor would ever let slip through. I also find much of great beauty, much that is truly philosophical (Ecclesiates), much purely erotic poetry (Song of Songs).
I got that beat. I was raised in a tiny church, however my Mom got cancer when I was 12, she spent 5 years being tortured by cancer in most of her body and died when I was 17. I didn't believe in God and I literally hated the idea of God and those that I thought so naïve to believe in a good God and miraculous healing. I loved to interrogate any Christians who dared to witness to me, and I used the same lame arguments I see non-theists use in this forum and other places. You would not believe the story of what it took to turn me from hating even the idea of God to being born again. Anyway, I was not going to a church, and was not being counseled by any Christian. I set out to adopt my positions concerning core doctrine in a vacuum (found out later they were all mainstream protestant doctrines by accident) and only then to select the church I thought had the best creed. So my story is similar to yours only I went the other way and mine is more sensational.
But never, on no occasion in all of my reading, did I ever come across something that made me think "this is TRUE." Not once. At least, not any more than Homer's Iliad -- which although mostly fable -- led Schliemann to actually discover Troy! We humans pass our stories along from generation to generation, and they are changed in the telling -- until some genius author writes them down in a way that is memorable and literate.
That is probably because your drug many presumptions into your investigation. You have no justification to simply write off a book (which despite its extreme claims) is accepted by 1 out of 3 people alive today. The most scrutinized book in human history, the most popular book in history, and the only worldview which accounts for observable reality so comprehensively. A book who's authors paid the highest of prices to defend without any material motivation.
But just as you would no more believe -- reading Homer -- that Achilles was rendered invulnerable by dipping him in the river Styx (flowing from Hades), except for the ankle by which he was held and thereby killed, nor would I believe in Balaam's talking *** (ooh, bleeped, call it "donkey") or in the Exodus -- which archaeology shows pretty conclusively cannot have taken place as described.
I know about Schliemann, Troy, Homer, Achilles, the bible, etc...... However I don't know why your lumping them together. Only the bible is adopted as reliable by billions of people.
Instead of making these strange comparisons and sweeping statements, we should consider the evidence its self.
Let's start with the motivation of the NTs authors. One of (if not the) greatest expert on testimony and evidence said the following.
The great truths which the apostles declared, were that Christ had risen from the dead, and that only through repentance from sin, and faith in him, could men hope for salvation. This doctrine they asserted with one voice, everywhere, not only under the greatest discouragements, but in the face of the most appalling terrors that can be presented to the mind of man. Their master had recently perished as a malefactor, by the sentence of a public tribunal. His religion sought to overthrow the religions of the whole world. The laws of every country were against the teaching of his disciples. The interests and passions of all the rulers and great men in the world were against them. The fashion of the world was against them. Propagating this new faith, even in the most inoffensive and peaceful manner, they could expect nothing but contempt, opposition, revilings, bitter persecutions, stripes imprisonments, torments and cruel deaths. Yet this faith they zealously did propagate; and all these miseries they endured undismayed, nay, rejoicing. As one after another was put to a miserable death, the survivors only prosecuted their work with increased vigor and resolution. The annals of military warfare afford scarcely an example of the like heroic constancy, patience and unblenching courage. They had every possible motive to review carefully the grounds of their faith, and the evidences of the great facts and truths which they asserted; and these motives were pressed upon their attention with the most melancholy and terrific frequency. It was therefore impossible that they could have persisted in affirming the truths they have narrated, had not Jesus actually rose from the dead, and had they not known this fact as certainly as they knew any other fact. If it were morally possible for them to have been deceived in this matter, every human motive operated to lead them to discover and avow their error. To have persisted in so gross a falsehood, after it was known to them, was not only to encounter, for life, all the evils which man could inflict, from without, but to endure also the pangs of inward and conscious guilt; with no hope of future peace, no testimony of a good conscience, no expectation of honor or esteem among men, no hope of happiness in this life, or in the world to come.
Such conduct in the apostles would moreover have been utterly irreconcilable with the fact, that they possessed the ordinary constitution of our common nature. Yet their lives do show them to have been men like all others of our race; swayed by the same motives, animated by the same hopes, affected by the same joys, subdued by the same sorrows, agitated by the same fears, and subject to the same passions, temptations and infirmities, as ourselves. And their writings show them to have been men of vigorous understandings.
If then their testimony was not true, there was no possible motive for this fabrication.
Testimony of the Evangelists by Simon Greenleaf