Another point of view on the question..
The brain itself has no senses..It is encased inside a dark "bone" enclosure. Our existence is defined by the eye's, ear's, olfactory and other nerves that send information to it. The world as each individual knows it is made from electrical and chemical impulses. The brain processes the incoming information from the body and constructs reality based on its own internal wiring. The organ itself is programmed by our genetics, experience's and interaction with others during the first 3 to 5 years of life. Reality itself is by nature.. "Subjective" What we learn during the first few years of our lives often determine which of the responses listed above one might pick.

I guess i would come closer to being in the third camp, if any. I think it might be more accurate to say "there is cruelty" than to say "there is evil." We can argue that cruelty is evil, but cruelty can be defined differently from one mind to the next.

The best response is to reject good and evil and judge things not by how right or wrong they are but by their utility for whatever arbitrary goals you set for yourself.

the conflict among men is not between Good and Evil different rationales of good.
I subscribe to the Buddhist idea that there is no such thing as evil, an individual may be sick, they cannot be evil.
it is sometimes useful in philosophical discussions to bring out extreme examples,
the Nazis believe that eugenics would benefit mankind as a whole.
this was a mainstream scientific belief that the time which of course created great evil.
it should be noted that their intention was not to do evil.

we have no evidence of an afterlife of any kind, therefore heaven was created to give suffering people hope. the best example of this I know is" Sugar Candy Mountain" in Animal Farm

Nuke 'em til they glow and shoot 'em in the dark.

Fuck them and anybody who looks like them.

Walk it off.

But then I'm told I'm a very primitive and unregenerate type of person.

Evil is just man's excuse for doing shitty things

"You want, if possible - and there is no more insane "if possible" - to abolish suffering. And we? It really seems that we would rather have it higher and worse than ever. Well-being as you understand it - that is no goal, that seems to us an end, a state that soon makes man ridiculous and contemptible - that makes his destruction desirable. The discipline of suffering, of great suffering - do you not know that only this discipline has created all enhancements of man so far?" Nietzsche

A fourth response:

There’s no such thing as evil. What we perceive as evil is just the workings of nature. Things happen for reasons, but those reasons might be over our heads. The life or death of a single organism is of little significance.

There is no afterlife. Time is an illusion. We are in heaven right now. The sense of existence as a separate individual in a body is an illusion. We are not our bodies. Our true essence in Ultimate Reality is conscious awareness itself.

Best try to avoid it.

When I first saw the headline, I comically thought "I usually tell my ex I'll see her in court." But the. I saw you had a deeper intent.

The one thing I do to help prevent the spread of evil is speak up when I can to put a stop to it. I teach my child what the evil is and advise him to act in positive ways. There's always going to be some sort of suffering, treat everyone respectfully but stand up for whats truely right.

John Keats or John Hick? (Perhaps both...)

And there are those who say you're being punished for your own misdeeds . And there are those who say all bad is due to Satan .