John Brunner on Hatred (nonfiction)

John Brunner (nonfiction) has written extensively about hatred.

From Stand on Zanzibar:

"Why do you hate Miss Steel so much?" Elihu asked Norman under his breath.

"I don't hate her personally, though if she were enough of a person to be worth such a strong emotion I think I easily could. What I hate is what she represents: the willingness of human beings to be reduced to a slick visual package, like a new television set—up-to-the-minute casing, same old works."

"I hope I can believe that," Elihu said unhappily.

"Why?"

"People who hate in concrete terms are dangerous. People who manage to hate only in abstracts are the only ones worth having for your friends."