First, Darwinian theory tells us how a certain amount of diversity in life forms can develop once we have various types of complex living organisms already in existence.
As a theist I believe that God exists and that God creates.
Most importantly, I agree that the truth of these matters should be determined by interpretation of scientific evidence - experiments, fossil studies and the like.
In short, the proposition that God was in any way involved in our creation is effectively outlawed, and implicitly negated.
If modernist naturalism were true, there would be no objective truth outside of science. In that case right and wrong would be a matter of cultural preference, or political power, and the power already available to modernists ideologies would be overwhelming.
According to the scientific naturalist version of cosmic history, nature is a permanently closed system of material effects that can never be influenced by something from outside - like God, for example.
