Thus far, the Debunkers have been unable to extricate themselves from two consequences of naturalistic evolution:
i) Alethic antirealism
ii) Moral antirealism
1. If nothing else were wrong with atheism, then either one of these would be more than sufficient to deliver the coup de grace.
If, as a consequence of naturalistic evolution, human reason is incurably unreliable, then naturalism is self-refuting.
In addition, alethic antirealism includes moral relativism. If there are no truths, or even if there are truths, but truth is inaccessible to the human mind, then there are no moral truths, or accessible moral truths.
2.Unlike alethic antirealism, moral antirealism is not self-refuting.
In principle, you could be an alethic realist, but a moral antirealist.
But at a practical level, moral antirealism is just as devastating as alethic antirealism.
For if there are no absolute values, then everything we value in life is devoid of value. What’s the value of truth and falsehood if right and wrong are illusory?
If everything I care about is meaningless, then I might as well kill myself.
Indeed, many unbelievers do regard human existence as absurd, which is which they commit suicide or become addicted to drugs and alcohol to deaden the pain and emptiness of their futile existence.