Great observation, Ma-Sha-Allah!
The false dogma of Original Sin is a part of the Pauline Doctrine (St Paul's conjecture of Virgin Birth, Original Sin, Blood Atonement, Ascension of Jesus, his Return to the world, etc).
HERE GOES THE QUR'AN (only a few verses presented) HEALING THE BIBLE:
17:70 Surely, We have conferred dignity on children of Adam (as a birth right, regardless of where the child is born) .....
So, no question of being born with the blot of Sin committed by someone else. Further, according to the Qur'an, Adam and his wife repented and they were forgiven.
49:13 O Mankind! We have created you male and female, and have made you nations and tribes so that you may (affectionately) come to know one another. Certainly, the most honored among you, in the Sight of God, is the one who is best in conduct. God is Knower, Aware.
[The only criterion of honor in the Sight of God is character, and not race, color, nationality, religion or genealogy. Some people think that God is only interested in the Children of Israel when He is the Lord of all humanity. And some think that God begot a son and sacrificed him to forgive their sins. But it is the Law of Requital that is operative in the entire Universe. So, there is no such thing as “Original Sin”. Every human being is born with a clean slate and is accountable only for one’s own doings. 1:1, 2:111, 2:123, 2:135, 2:211, 17:70, 49:13, 53:38-39, 114:1]
53:38 No laden one shall bear the load of another.
53:39 Every human being shall be responsible for his works, and compensated for, his labor.
53:40 His effort (and not the results) will be seen.
53:41 Then he will be fully rewarded for it.
In my book, (TSB) THUS SPEAKS THE BIBLE, I have shed much light on the numerous fallacies, contradictions and irrationalities found in the Bible. TSB is available online right on this website, www.ourbeacon.com library.