What is Evil? is there such thing? is there even a good or a bad, a light and a dark. Does evil describe, or does evil exist? What can be classified as evil? Is evil truly wrong other than the fact that it hurts others? is evil a mindset, or a noun? is it even there? describe evil, talk about it.
Yep - I'd say hatred and evil are human concepts. In the animal world you get competitions for dominance, fighting and death - but they certainly don't 'hate' each other - that's the circle of life and of the social hierarchy. Nor can inanimate objects be evil or hate each other.
It's definitely a human concept, it's a word to qualify how a person A thinks and feels about the acts of a person B. Nature does not know such judgement, it isn't evil or good, nature simply is; and there's only us to judge about things. And imo such things as pure evil, pure hate etc. don't even exist.
We label persons and groups as evil to absolve our actions. Because the threat it poses is so severe, we are justified in neutralizing that threat by any means possible. An evil entity is always hostile and threatens our identity. We cannot change it's behavior. We cannot approach it with kindness or empathy. They are agents, who desire to hurt, destroy and damage.
