Sadism is objective evil. Wanting to hurt others, for the sake of hurting them, is evil. A person can commit genocide and not even be evil. They would have to want the victims to feel the pain, not just seek an objective.

The state of today's world would suggest objective evil exists.

What's evil to begin with?

What's darkness? The absence of light

"The only thing necessary for the triumph of evil is for good men to do nothing."

Evil seems to be defined by absence of good

https://en.wikipedia.org/wiki/Evil

Warning, long ass dfinition

Evil, in a general sense, is the opposite or absence of good. It can be an extremely broad concept, though in everyday usage is often used more narrowly to denote profound wickedness. It is generally seen as taking multiple possible forms, such as the form of personal moral evil commonly associated with the word, or impersonal natural evil (as in the case of natural disasters or illnesses), and in religious thought, the form of the demonic or supernatural/eternal.[1]

Evil can denote profound immorality,[2] but typically not without some basis in the understanding of the human condition, where strife and suffering (cf. Hinduism) are the true roots of evil. In certain religious contexts, evil has been described as a supernatural force.[2] Definitions of evil vary, as does the analysis of its motives.[3] Elements that are commonly associated with personal forms of evil involve unbalanced behavior involving anger, revenge, fear, hatred, psychological trauma, expediency, selfishness, ignorance, destruction or neglect.[4]

Evil is sometimes perceived as the dualistic antagonistic binary opposite to good,[5] in which good should prevail and evil should be defeated.[6] In cultures with Buddhist spiritual influence, both good and evil are perceived as part of an antagonistic duality that itself must be overcome through achieving Nirvana.[6] The philosophical questions regarding good and evil are subsumed into three major areas of study:[7] Meta-ethics concerning the nature of good and evil, Normative ethics concerning how we ought to behave, and Applied ethics concerning particular moral issues. While the term is applied to events and conditions without agency, the forms of evil addressed in this article presume an evildoer or doers.

Some religions and philosophies deny evil's existence and usefulness in describing people.

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Ok

Results may vary...

What's evil for he cosmos? When the moon collides the earth and everybody dies on earth, is it evil?

No, it's a side effect of a physical phenomenon, ie, the collision of two space rocks, but there's no good or evil in this phenomenon IF occuring naturally... If someone made it happen, then yeah.... We can start talking about evil I guess...

Is there evil when the crocodile eats a mamal alive? No, that's just nature... Life and death cycle...

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Read backward, evil gives live

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We talk about good vs evil, not good vs bad....

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Well, I guess I'll just leave it at "evil is what we do... Or not"...

While I struggle to define evil, and therefore define objective evil.... What I DO KNOW, however, is that malevolence, as opposed to benevolence, is real and not subjective....

https://en.wikipedia.org/wiki/Malevolence

Evil Hostility Malice (law) Sadism, the experience of feeling pleasure from the pain of others.

https://www.lexico.com/en/definition/malevolent

"Having or showing a wish to do evil to others."

lol nice try

https://www.merriam-webster.com/dictionary/malevolent

1: having, showing, or arising from intense often vicious ill will, spite, or hatred 2: productive of harm or evil

Yeah not bad, but not quite that

https://dictionary.cambridge.org/fr/dictionnaire/anglais/malevolent

causing or wanting to cause harm or evil:

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Ok, from there, it's safe to assume that the prerequisite for evil is malovence

So, when you're deliberately causing arm, to others, you're comitting evil...? What about self defense then? Are you benevolent toward yourself or malevolent toward the "enemy" while using self defense?

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It's a tough one to crack

It feels like evil is like balck holes, you can only outline the edges of it, you can't really "point" at it as an "object"

But in the end, evil is more than just the absence of good, unless if our universe is inherently evil, then, if there's no good, there's evil. But I don't think the universe is inherently evil

So evil, is not only the absence of good, but also a deliberate will to not do good/let good prevail

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Ok that was my best shot for today

I guess that answers your question (yes, objective evil exists, when there's a deliberate will to prevent good from happening, you're into the objective evil's realm)

Now what is good... I guess that's the poitn at which the conclusion above eventually turns false

..Eventually.

Also, found this

https://groups.google.com/forum/#!topic/alt.philosophy/tTuAy8agBHo

Objective, independent definition of Evil:

  Taking away, hindering, preventing or destroying the possibility
  or ability of people actively to enjoy Life.

  The (hidden) Joy of taking away, hindering, preventing or
  destroying the possibility or ability of people actively to
  enjoy Life.

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Yeah that's pretty much what I ended up with

What do you mean by objective evil?

I do. I find that people who don't tend to believe otherwise for self-serving reasons or to feel smart.

evil is like calling sunshine light... when you break down sunlight you get a large sprecrum

There do seem to be some patterns of abusive behavior that hint towards that.

Does objective evil mean or imply that it comes from a superhuman/supernatural source?

I would say yes, but I'm not sure I believe in objective objectivity.

Child rape. It objectively destroys quality of life.