Adam had a choice to freely choose God. Adam freely chose to disobey God. All of humanity fell in Adam therefore we all deserve top go to hell.
You assume that one is fallen because they reject Jesus Christ. The truth is that one is fallen BEFORE he rejects Jesus Christ, in fact, the sinner rejects Christ because he IS fallen already.
God is so righteous and so caring that God provided a plan of redemption (even for Adam.) Therefore, what I deserve is not even the issue. The issue is God's loving, righteous plan to provide redemption to all who turn to Him.