This is the blessed of all things that the child of God has. Freedom from sin and walking in newness of life. The sinner simply cannot even see that aspect. I remember giving up that life as well around 45 years ago. Many confuse sinlessness with self-righteous perfection. It is not about that at all. The sinless life is commanded from God.
It is about who you are in Christ and your walk with Him. As long as God's seed remains and a man walk upright with God, he is promised that freedom. It is when that man chooses to follow another path that danger awaits him. When one truly grasps this they can find the desire that God has for His creation to love them of their own free will. It took me some time to "catch hold" of this, and maybe I need much more, yet what I did grasp was when I realized what God desires of us.