Why do we hate one another? Why do wait hate those who are unlike us in what
they believe, how they act, or in how God Himself made them? The simple answer
is because of the effects of the First Sin, the Fall, through which we became
subject to sin, death and corruption. While Our Lord Jesus Christ through His
passion, death and resurrection has conquered these effects, we are still prone
to sin. Hate is a particular ugly manifestation of the effects of the Fall.