So the condemnation of death, suffering due to Adam's sin, fell on all of Adam's offspring AUTOMATICALLY for a transgression committed by someone else.
Just not by someone else but by the first human couple to receive a soul. And everybody who possess a soul is a descendant of them. Even though it's not considered a personal sin but an inherited sin through the very human nature. The worse consequence of this original sin is the eternal perdition of the soul.
Yet, Jesus' ransom is not applied the same way - it is NOT AUTOMATIC, yet beneficiaries have to believe in Jesus and his ransom sacrifice, exercise faith in Jesus and his ransom sacrifice and work at proving worthy of "grace".
Exactly.
This is not fair. Since the condemnation was AUTOMATIC and not the fault of Adam's descendants, the ransom should likewise be AUTOMATIC. Christianity unfairly stacks the odds against the innocent offspring of Adam who inherited his sin through no fault of their own.
It is a fundamentally immoral worldview where the innocent are blamed and punished for the sins of their ancestors.
There is no justice system in the world which requires innocent children to pay the penalty for a crime committed by their parents.
Well this is your opinion.
My opinion is I can't escape from all consequences of the acts (physical and metaphysical) done by my ancestors (all of them).
But my immediate ancestors (my parents) baptized me when I was a baby in an unpainful and inexpensive way. I think the procedure of baptism is very fair compared to the possibility to get an eternal reward.