From the beginning you express a particular view of human nature:
Is it possible that there is a part of us that reaches beyond our base natures, to reach for that which is bigger than ourselves
What if our nature is not base but is actually pure and good.
In that case it would be a simple lack of recognition or split of some kind which would cause us to externalize the source of goodness and pursue it as a separate entity.
I believe that the God of the Bible is a god in the way Hindus and many other cultures conceive of deities- there are powerful beings we can interact with but they are not all good- in fact they might just be a JEALOUS, ANGRY, and REQUIRE OFFERING SACRIFICES.Sound familar.
Not sure how this notion of omni- everything all good GOD got wires crossed in western peoples minds with the sort of minor gods and goddesses that many cultures spend time pacifying- and that if you read the bible you realize god himself sounds as if he is trying too hard to be MIGHTY.