To me I think the scriptures are very plain that man is inherently corrupt
Nonsense! The Scripture leaves no doubt that God created man in His image and likeness, i.e. good. Good try Sherlock.
The nature of ancestral sin is that we lost our likeness to God, while remaining in His image. Therefore we are not dead. We are defective and wounded, distorted and deficient. The whole concept of salvation is to conform to the likeness of Christ once again and to regain the original state. Obviously, we can't do it on our own, but need God to help us. Instead of destroying all of humanity, He is dedicated to healing it and restoring it.
God's laws are inscribed in our hearts (Heb 8), which means we do know what is good and what is evil. The problem is that we want only that which is "good" for us (self-love), and that we are unwilling to love our neighbor as ourselves, let alone God with all our heart and mind and soul.
Those who killed Christ knew He was innocent. Pontius Pilate said so. The Jews picked Barabbas over Christ. God did not lead them to it. He simply knows what corrupt human nature wills in its arrogance and pride.
I am not sure why you keep spouting Job. I am asking you to re-read Genesis. The story of Genesis tells us that MAN DSIOBEYED GOD'S WILL, which can only mean that MAN CAN DISOBEY GOD IF HE OR SHE WILLS TO DISOBEY GOD, consequences notwithstanding. Maybe Job didn't last very long, but Adam lived to be 900 years old.
I don't know how to explain this to you in more simple terms. It is obvious to all except those who are captive of their own pride, that man is free to obey or disobey God, because God gave us the mind and the free will to use it. The Scripture makes that abundantly clear. Unless of course you believe that God made Adam disobey, which brings us back to the corrupt God and some kind of Protestant Theology 101.
or...
Mat 12:34 "You brood of vipers, how can you, being evil, speak what is good? For the mouth speaks out of that which fills the heart.
or...
Luk 11:13 "If you then, being evil, know how to give good gifts to your children, how much more will your heavenly Father give the Holy Spirit to those who ask Him?"
or...
Luk 18:19 And Jesus said to him, "Why do you call Me good? No one is good except God alone.
Well, you [MAYBE] get the idea by now. Our Lord Jesus thought that only God [ie Himself] was good. Everyone else was evil. Sorry to disappoint.
Pro 16:9 The mind of man plans his way, But the LORD directs his steps.