Well you have to establish some line of objective fact to have morals imo.
We're talking about objective morals when I say morals. True for everyone, everywhere.
Certainly people can do "good"/align with absolute moral objectives without knowing they are necessarily subscribing and aligning their subjective morals with objective morals.
But without some ultimate set in stone authority,
a subjective moral can crumble in face of good or evil. Because there are different points of view, you would need a guide that is immutable.
We all inherently have evil tendencies imo.
We also have ability to recognize them and not do them. The recogintion of this winning or losing struggle is defined by objective moral law.
But I submit if you believe in good you are excepting the idea of good and evil.
Let me borrow from Ravi Zacharis ,
"When you say there's too much evil in this world you assume there's good. When you assume there's good, you assume there's such a thing as a moral law on the basis of which to differentiate between good and evil. But if you assume a moral law, you must posit a moral Law Giver, but that's Who you're trying to disprove and not prove. Because if there's no moral Law Giver, there's no moral law. If there's no moral law, there's no good. If there's no good, there's no evil. What is your question"?
I believe sinned entered into the world kin to a cancer/curse/punishment/ a TRUTH that states absolutley sin must be exterminated by death.
Adam was morally perfect in fact his record of sin was zero. Perfect record up till then.
Not because he couldnt sin, because he didnt sin.
He allowed evil to enter the world because he was tempted and went contrary to word of God----he sinned.
Moral absolutes produce either good or evil.
They bear good fruit or bad fruit.
Simply put, they "count" for good or evil and are what convict us and sentence us to death.
The wages are high. The mutation has been introduced and it doesn't skip a generation.
We are utterly incapable irradicating sin, and we need something outside ourself to be restored.
Why does it appear different cultures have different morals is because they do.
They are subjective morals that aid in survival.
They can change with the wind.
Since good usually build and evil usually destroys, naturally good usually wins out.
God and God alone gives objective morals by way of spirit imo.
They are written in our soul as a compass.
A compass that gets more precise and tends to point due north as we are revealed Gods word/truth. That is if u take time to look.
But like sin and like adam, fortunately we inherited free will to choose and unfortunately we inherited sin/evil tendencies that make it hard often to choose right.
Self preservation and avoiding death for as long as we can pretty much reinforces self as king.
