If you're saying that Man's character is changed by his deeds, then that itself would be one of the characteristics of Man's God given nature.
That's like saying, I gave my son a tattoo, because half of the genes in his skin are from me.
How is that? Can you explain your analogy?
Sure... I didn't choose for my son to have a tatoo, so I am not responsible for his appearance. In the same way, God did not make our choices for us so he is not responsible for our nature. If we had made the choices he intended, we would have the nature that he intended.
If God created Man, then the only sin would be for men to damn existence and their gift of life from God, by choosing to believe that nature of God's universe and the God given nature of Man was evil and then acting upon that destructive and ungrateful premise.
You seem to deny the change brought on by sin. Although God created the universe and man, he endowed all beings with free will. The universe, our earth, and man, although created by God, have been marred by sin. They are not as He intended. Because God is too holy to behold sin, he has been forced to withdraw Himself from us, or we would be destroyed by His presence. The problem with this is that without God to sustain us, everything dies. He wants very much to be reunited with us, but he values our freedom even more. He has given us the way to overcome sin, and be reunited with Him, but few choose this way.
So, what is sin, and why is it so bad? Sin is the transgression of the law? What is the law? Love for God and man. So why should we love God? Because He first loved us. How do I know he loves me? He was willing to give up the one thing that was most precious to Him, the one thing he couldn't replace, His only born Son? So, why couldn't He replace Him? He wasn't created. If Jesus wasn't created, how did he come to be? He was born before time. Who was His Mother? He had none, he came from the bosom of His Father. Why should I love my fellow man? Because God loves them. So why is this the law? Because this the way we were created, this is our purpose. To fear (love, respect) God, and give glory to him (do things that are true to His character.) It's like the laws of motion, it's the way that bodies in motion are supposed to behave.
If God created Man, he did not leave Man alone in the dark. He gave Man eyes to see and a mind to think. He gave Man a spiritual capacity for pleasure, joy and happiness to be made more meaningful by pain, sorrow, guilt and fear. All these are the tools and guideposts to find our way through the darkness of confusion toward the light of wisdom.
God is not the author of pain, sorrow, guilt, fear, darkness or confusion, anymore than the maker of a gun is the author of school shootings.
If you understand scripture, then you can tell me, in your own words, the purpose of your life.
Couldn't help myself, my words in parenthesis.