Because there is a real difference between the two realities. In the real world narcs are easily broken. Their ego's are weak. Here they have the internet and persona’s to hide behind. Denial is easy. Here I don't have to deal with the real world destruction that a sociopath can inflict. I can view them from a distance without getting caught up in the storm.
I don't hate. I "dislike." I usually don't go out of my way to categorize hatreds. Extend this ambivelance to gender, race, and culture. About the only thing close to hatred I have is most organized religion and politics. And yeah, my hatred is narrowed down to an individual basis, most of the time.