Here is my understanding of the common definition of original sin:
the state of sin that characterizes all human beings as a result of Adam's fall
In other words because Adam sinned and that makes everyone after him sinful. That puts the power of one man's sin way up there. I'm talking some real strong stuff. One guy sent the whole world to hell with just one bite of fruit. In this line of thinking I don't have to believe in Adam or his sin. Regardless what I think about it or what I believe about it, I am a sinner damned to hell. I get it if I want it or not. No Choice on whether I a born with sin or not. Death is automatic.
The Bible put it this way:
1 Cor. 15:22a "For as in Adam all die"
ALL DIE! That's a big statement. It make's Adam's sin very powerful. Most people who believe that Adams sin kills everyone without their permission do not believe that Jesus can give life to everyone without their permission. For them Adam and his sin are more powerful then the Son of God! They don't read part b of 1 Cor. 15:22 "even so in Christ shall all be made alive."
ALL ALIVE! Without giving mental assent to the concept. Just like I did not say, "O sin of Adam dirty my heart! Make me a sinner and send me to hell!" I do not have to beg Jesus to clean me up and get me out of it.
Just something to think about.
“Deus nobis cerevisiam dedit quia nos felices esse vult” -Benjamin Franklin