That's an interesting take on it, that Judaism is implicitly secular humanistic and pantheistic or naturalistic. I'm inclined to agree, although I think there's something idolatrous in the character of Yahweh as he's presented in the scriptures. He's a jealous, resentful deity for outsiders which reflects the Jewish experience of being alienated and resented. So the question is how seriously Jews should take that divine protagonist in the religious narrative. Because nature has quite a different "character." Nature isn't jealous but indifferent and inhuman.