Sure thing. How about, "wow, isn't it amazing how God can just graphic imagery and symbolism to create both an abstract construct and a solid representation of a world we can actually have little understanding of from our current point of view. I have been so small minded in not seeing the the obvious attempts of someone so much greater than myself trying to give me strength and wisdom. I am truly grateful and now know there is a God."
Or you could just go with, "Talking snakes? That's silly."
Your argument is not with me so much as it is with the more excitable Christians who don't accept your imagery and symbolism but require a literal rendering of genesis, taking snakes, floods Arks, etc.
I find it interesting and exciting that human nature pursues deeper than the superfluous non-answer of "the gods did it". We pursue knowledge. Allegorically speaking, it's both the blessing and curse of our nature-- which is why the "Tree of Knowledge of Good and Evil" is a very apropos symbol of eternal sin.