If Atheism Is True Then Rape Isn't Wrong

If naturalistic materialistic atheism is true, then there is no objective basis on which to condemn rape as objectively morally wrong. In fact, Darwin's "survival of the fittest" actually gives credence to rape actually being a natural survival procreation method, which is exactly what the authors of A Natural History of Rape: Biological Bases of Sexual Coercion end up concluding.

So what about the Biblical worldview?
Full video: https://youtu.be/nNM2a-yTAdk?si=DFtA7phdzNm5FXy7