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.
The assumption that nature is all there is and that nature has been governed by the same rules at all times and places makes it possible for natural science to be confident that it can explain such things as how life began.
Next Article
The problem with allowing God a role in the history of life is not that science would cease but rather that scientists would have to acknowledge the existence of something important which is outside the boundaries of natural science.