You are coming from humans are, and were, blank slates, therefore; mores did not exist, which means, there is no absolute standard for good or evil.
IF, if that is true, then nothing is absolutely wrong. If the control of a society says you do not do a, q, p or y because --why -- they do not like it?
Then if, the control of a society changes and they say a, p, q and especially y are just fine, and what the previous kahuna are wrong, they are correct , as long as their doctrin rules, BUT, nothing is absolutely, for eternity, good or evil because nothing ever absolutely was, is, or will be.
Mores will change with those who control society.
Any threat to said same society can be eradicated, which would be good in that societies leaders doctorine. IF -- another kahuna/s take control and write a new doctrine of mores, they are what determine good and evil but only as long as they are in control. Supposed good and evil are ONLY what some one/s say they are, they are not an absolute , which God's are.
This is fine as from nothing comes nothing. If there were no eternal mores to set what is good or evil, as dictated by an Eternel deity, then ther is nothing to determine what is good or evil because there was nothing to determine it from.
God is eternal, the mores in God's society are eternal; always have been, are, and alway will be.
God and those that inhabit God's universe know the rules and do not defy them; those that did/do will spend eternity else where in some sort of eternal despair.
God created the universe of man, why, no idea.
God created Adam with a blank state of knowledge of good and evil with one ultimate command do not eat of the tree of knowledge of good and evil.
All Eve had to do was tell Satan, NO I CANNOT do that, but she did, and then Adam all he had to do was REFUSE what she offered, but NO, he ignored God and listened to her, then he blamed her, and God for giving her to him for HIS orginal sin.
The closet on can get to say one inherits possibility sin from ones Father is that personality traits DO come from the Father not the mother, so while Adam's children were not born sinners that go to hades if they die young, they inherit the traits that could lead them commiting their first sins.
Just as Revelations infers one-third of Angels fell from heaven with Satan, I believe, some people are just plain evil when they are born, no thing on Earth causes that.
For one more thing, -- I believe, -- all people have existed for all time, even though defining time is a futile endeavour but in this case for the time the Earth has existed as we know it, every one was around before God made the current version of the Universe, and will still be around , some where, when he redoes it.
When one is born , one becomes part of the physical universe that now exists.
Too many theologian/preachers or simply men who try to explain faith/religion have narrow minds that think mankind and the Earth as we know it are the only places dealing with God's considerations.
Defeating Satan IS GOD'S main consideration, and has been as long as Mankind as we now know it has existed.
There was, maybe still is, a cold war in God's universe; human society is part of that war, but God deals with Satan directly every day in his time scale.