Unbelievers use the ‘wills’ that are aspects of their created living souls to reject their Creator and the souls and wills He gave them and then willfully choose creation denying Darwinism so they can claim to be ‘caused’ to do the bad things they do. There really is no way they cannot know the truth when every choice they make declares the truth.
I understand your point about the “excuse”.
I don’t believe in Darwinism either... We were created but not in the way they think we were. We know know much more than in Darwin’s time.