I thought my post made clear these questions, I'll try again. I think the problem with your misunderstanding me is based on a belief that God works in our physical world, and an understanding of how God used symbolism.
I do not think it was the blood of animals (literal) that made for atonement. It was the blood of Christ that animal blood symbolized. When Christ came (literal) the blood of animals to symbolize Christ was not needed and and to use it would be to deny Christ.
The whole law does not include the rituals that were to lead to the law. God doesn't make mistakes or give commands he regrets. Those rituals like cutting foreskin were needed to help people learn his laws. The Holy Spirit replaces the rituals, they are not the law. The Holy Spirit acted to replace the rituals, they lead us into obedience of the law. Man gets the rituals mixed up with the law because they take on the teachings of the gnostics: that God is not in literal things and all literal things are of the flesh and corrupt. That is not so. In Col. 2:21 it tells of their teachings: don't handle, taste, or touch. They taught God was not in things we handle, taste, or touch. Paul says that is not so.
So as the new covenant (the real one) teaches, God leads us directly and rituals are not needed, but God leads us to keep the whole law, but you are including the things God told us weren't to be followed in the "whole law". That is an error.