Therefore, just as sin came into the world through one man, and death through sin, and so death spread to all men because all sinned.
It’s Adam’s fault
In the beginning God created a perfect world (Genesis 1:31), but because of the disobedience of the first two humans he created, creation became corrupt.
Before Adam and Eve disobeyed God, there was no sin. There was no death, no pain, and no hurt; everything was perfect.
Clearly, that is no longer the case. Everyone would agree that something is wrong with our world. Because our world is now cursed (Romans 8:18-22), creation is no longer perfect, and neither are the people that live in it.
Since we are not perfect, we need a savior to forgive us our sins so that we can again have the ability to live eternally with God. And while it is true that because of Adam (and Eve) sin entered the world, it isn’t Adam’s fault that we sin.
It’s not Adam’s fault
The common inaccurate argument against Christianity is that it isn’t fair that due to one man’s decision to disobey God, we all are condemned to eternal punishment. The problem though is that while sin entered the world through one man, our decision to sin is our own fault.
Adam doesn’t make us lie, we do. Adam doesn’t make us disobey God, we do. Adam doesn’t make us sin, it’s our choice.
So while it is Adam’s fault that sin entered the world, it is not his fault that we have all knowingly done or thought things we knew wrong, but did them anyway.
That is not Adam’s fault.
For all have sinned and fall short of the glory of God
We are responsible for all of the times we chose to do things we that we should not. Sure, we can blame Adam for the evil and death that is so prevalent in our world today (though I think everyone would have disobeyed God the way Adam did if the roles were reversed), but we cannot blame him for our personal sin.
We deserve eternal separation from a perfect God because of what we have done, not because of Adam.
Thankfully, God is unfair. He gives true life to all those who trust in him, regardless of what they have done. Undeservedly, God has given all of humanity as second chance through Jesus Christ, and it is on us to accept it.