Naturalistic worldview argue that either totally random forces can produce intelligent complexity ( a mechanism which no one knows how ) or that what we assume to be intelligent complexity are actually deterministic or fractal on a grand scale ( which no one has objectively shown either).
There are still possible but one has to use one’s imagination to accept that , meaning no actually evidence to stand on.

Supernaturalistic world view say that there is an intelligence which produce intelligent complexity. There are evidences shown but most people do not want to accept it thinking that the concept of supernaturalist world view is too far fetch to accept.( this is in contrast to few thousand years of anthropological evidences and preferences of more than half of present world populations)