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.
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.
Evolutionary biologists are not content merely to explain how variation occurs within limits, however. They aspire to answer a much broader question-which is how complex organisms like birds, and flowers, and human beings came into existence in the first place.
No doubt it is true that science cannot study God, but it hardly follows that God had to keep a safe distance from everything that scientists want to study.
Darwinism is not merely a support for naturalistic philosophy: it is a product of naturalistic philosophy.
The second advantage claimed for naturalism is that it is equivalent to rationality, because it assumes a model of reality in which all events are in principle accessible to scientific investigation.
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.
To philosophical materialists God is no more than an idea in the human mind, and not a very important idea.
In short, the proposition that God was in any way involved in our creation is effectively outlawed, and implicitly negated.
A constitutional democracy is in serious trouble if its citizenry does not have a certain degree of education and civic virtue.