Why do you think the authors of those stories "plagiarized" what was commonly understood history? 

Did Plato plagiarize his account of Atlantis? No. He wrote down what he was told. 

Once a person starts to poke at things, I think it's more remarkable that the Bible shares a very remarkable similarity to all mythologies that I'm aware of, from the whole world over. So, I can't agree that the Bible is "plagiarized." 

As for the divine consciousness you believe responsible for our existence, why is it that you would reject the God of the Bible as that being? 

Religion is evil. I agree. The Bible certainly has been misused. I don't think I'm religious. Most organized religion (well, probably all) is certainly off the mark or just outright evil. But... That's still got nothing to do with God's purpose for humans and very specifically for you.  

 The beef I have with the original authors is that they took what they knew to be true, then twisted it into something else. They didn't write down what they were told, they straight-up fabricated aspects in the re-telling.

In terms of the "God of the bible", versus what I believe; Jahova is a total shitbag. Yahweh, Elohim, et. al. aren't so bad, but the desires and needs of Jahova are extremely immature, and beneath my own needs and desires. I could never whorship someone that isn't worthy of my presence. I believe the God of the bible (in most depictions) is the demiurge. He certainly acts like it. 

 Could you please explain how you know that they wrote untruths? 

You do you equivocate YHWH and JHVH? 

The demiurge? That's kinda cringe. Lol! But, I can't come to that conclusion at all.