I think people are confusing ‘original sin’ and ‘personal sin’.
Babies are born without ‘personal sin’. Those who are mentally handicapped can also live their lives without ‘personal sin’ if they lack sufficient ‘reason’ to understand that an action can be sinful.
But all of us are born with ‘original’ sin. While the ‘original sin’ of Adam and Eve was ‘paid’ by Jesus on the cross, the ‘effects’ of it linger in each and every one of us in that lacking baptism (water, blood, or desire) we still have a ‘stain’ on the soul until we are baptized.
However, we are NEITHER: inherently good as one poster put it, NOR are we: Born dead to God and depraved.
The one is humanism, the other Calvinism.
We are born in God’s image and likeness which is good, but ‘stained’ through the sin of our first parents with the predisposition to evil. Though not guilty of ‘personal sin’ at birth, lacking God we WILL be predisposed all our lives to sin (concupiscence). Because Christ redeemed us and He is the way, the truth, and the life, in the NORMAL experience of life on earth our ‘way’ to Him is marked by the sacraments which will help us and especially by baptism which ‘cleanses’ us from original sin, and later by confession which ‘cleanses’ us from our later, personal sins.
There are, have been, and will be those who will not be baptized in Christ. Because they remain with original sin they will have a much HARDER time being saved, and in the end they will only wind up, if they ARE saved, by being saved through SOME type of baptism. . .usually that of blood or desire.
It is only through Christ and His Church that we will be saved.