Why do you say you hate "The Mule"?  Isn't it wrong for Christians to hate anyone?

This question refers to my second book "Straight From the Donkey's Mouth: Exposing the Secrets of a Sexual Predator".  This book is my response to an anonymous pedophile, calling himself "The Mule" who published a 170-page manual on how to molest children.

I have never met "The Mule" but came to know him well as I poured over the despicable manual he published on the internet.  There were many times in the process of reading through this manual that I had to literally stop and vomit.  The material was so vile and disturbing.  "The Mule" absolutely delights in abusing children and wants to teach as many people as possible how to do it. His manual is literally a how-to book on all aspects of child molestation.  

I knew God wanted me to publish a book taking the details that this pedophile wrote about and putting together my own book helping parents to know how to protect their children.  The entire project from start-to-finish was all out spiritual warfare.  I came to despise "The Mule" - remember I have not met him so he is not a person with a name and face to me.  He represents a pedophile who not only wants to teach others how to molest children but he wants to promote his diabolical agenda to the rest of us and demand that we tolerate his "preference" for children as just another sexual orientation.  I will never accept the raping of children as "normal".  

I do hate "The Mule" - he is an enemy of God and anyone who has a shred of decency.  I understand what David meant when he wrote, "Do not I hate them, O LORD, that hate thee? and am not I grieved with those that rise up against thee?  I hate them with perfect hatred: I count them mine enemies." (Psalm 139:21-22)