“All things were made by him; and without him was not anything made that was made.” (Jn. 1:3)
The very things the atheist uses to argue against Christianity, actually cuts both ways. The objections against the failures seen in religion also argue against the atheistic philosophy of naturalism.
The idea that mere material particles, composing the entire rationale for causation for everything in the universe according to naturalistic philosophy, could possibly be the explanation for the social/moral breakdown of the Crusades, the Inquisition, the various religious wars, the modern versions of slavery, and the Roman Catholic Church as a wholly repressive political entity prior to the Protestant Reformation, is thoroughly implausible.
That neutrally bland, morally-empty material particles could, through mutation and natural selection, rise to the current state of conscious thought and the complex and subtle sophistries of the creation/evolution debate, stretches all credibility.
Even if we have zero idea at this point in time how creation was accomplished, at least to this Christian the concept of fiat creation by an Intelligent Designer God is vastly superior to Darwinian evolution. The notion that all of the complexity that we see in the physical universe from the cosmos to the living biological cell, should have self-assembled itself into its current functionality according to any imaginable or unimaginable purely unguided program requires an atheistic faith in materialism that can in my opinion be characterized as simplistic and childish.
The Bible presents to us a living God who is not subject to or limited by the dimension of time. God therefore has infinity of time at any one moment to answer multitudes of prayers spoken daily across the globe, manage individual journeys of faith large and small, oversee the minutest details of the ecological balance of the planet, and to have spent unlimited time in the design and creation of every living and nonliving thing we observe and study today.
As a Christian, I like the concept of the Anthropic Principle first introduced in a paper submitted by the British physicist Brandon Carter in 1973 at a scientific conference. It identifies scores of mathematical “constants” in the equations that describe the physics of the universe that had to be in place during the first few split-seconds of the Big Bang to allow for complex life like ourselves billions of years later.
The argument made by atheists that “because we are here as observers” supports the notion of a naturalistic explanation for the apparent design we perceive in nature, only works if a person is already convinced of naturalism. Again, this argument cuts both ways. “We just happen to be here as observers” just as easily can be explained as a result of fiat creation as well.