This is beautifully written. I'm sure many will "borrow" your words for debates with theists.

Raised as a Catholic, evolution was accepted, taught in the schools of my Catholic dominant community, and I never thought of Genesis as fact. It read like a story and I figured that it was. Your correct, evolution flies in the face of Christianity. Traditional Christianity should collapse if these views are properly considered, but they are not. They are either condemned or ignored like the elephant in the living room.

Some liberal or more new agey beliefs consider evolution as fact because it falls in alignment with the concept of expanding our Consciousness. To them we are not born of original sin, but evolved - of our own "volition." The quote you identified “For I do not do the good I want, but the evil I do not want is what I do. Now if I do what I do not want, it is no longer I that do it, but sin that dwells in me.” (Romans 7:19-20) is reframed into a label "ego" to explain this contradiction. Essentially we have separated ourselves from God and have forgotten who we are. The ego is the human aspect of us while our Higher Consciousness if our connection to God which propels us onward to evolve and do good. You may be asking when and how did this separation occur? Why "in the Garden" ---a metaphysical, metaphorical one of course! It is interesting that a belief system that has adapted over the past couple of hundred of years, possibly in response to discoveries and science of the day, still holds to pieces/parts of the Bible which as you, Mike has so eloquently written, challenges the belief system. Without having some sort of "leaving the garden" story, much of this New Thought belief is also on unsteady ground, but I'm sure there is another explanation that has been thought up.

Edit: Oh wait, there is one...We are living in the matrix believing this Christian story. We never left the garden.