It's like a knee-jerk reaction almost to call law-keepers "anti-Christ"? You can' lump all the laws articulated by Paul together because you cause confusion. When Paul says "law" he's not always talking about the same law. So let's simplify it (although we can get even more specific if we need to), all of the things God told the levites to do were a placeholder and never meant to be the true ministration because they represented what Christ would do. It's those things ya don't wanna go back to. To go back to those things are indeed "anti-Christ". Not talking about going back to those things.
Ok, now that that's been established lets speak on the commandments, which are ALSO called "Law" but you know we mean the commandments:
"The law was made for the unrighteous". Exactly true. This is exactly what both yours and my list explaining the function of the law describes. Society's law shows what a crime is so to God's law shows was a sin is. But these laws are NOT Moses' laws but God's laws given through Moses.
The Holy Spirit was given on the same holy day as the laws written on the tables of stone. The Holy Spirit is the embodiment of those same laws. Those tables were a representation of the Holy Spirit. The difference between the tablets and The Holy Spirit is you can't place stone tablets in a person's heart; they're always on the outside of a person, never entering in. Thus the Holy Spirit is the fulfillment of God's promise in Jeremiah:
Jeremiah 31:33
For this is the covenant that I will make with the house of Israel after those days, declares the Lord: I will put my (GOD'S, NOT MOSES') law within them, and I will write it on their hearts. And I will be their God, and they shall be my people.
...and of Ezekiel
Ezekiel 36:27
And I will put my Spirit in you and move you to follow my decrees and be careful to keep my (GOD'S, NOT MOSES') laws.
These are the same laws, just made alive by the Spirit of God. They're not dead on a block of stone unable to affect a change. But I haven't pick which ones I want to follow and which ones I don't want to follow. God's law does that all on it's on because NOT every laws was for everyone. For instance,
There were laws for the priests which other people couldn't do. There were law for when one is in the promised land which can't be don't when someone is away. There are laws just meant to be placeholders until the proper person could come and do them correctly (like in the case of animal sacrifices & Christ's ministry). So there's no picking and choosing I'm guilty of when I follow the scriptures that says "the blood of bulls and goats can't take away sins", that means I don't do those.
1) the law of the spirit of life in Christ Jesus IS the Holy Spirit who will take you back to Ezekiel 36:27
2) the law of love which will take you back to Ezekiel 36:27
3) the law of faith ( the Law is NOT of faith Gal. 3:12 ) is Justification. And once we are justified, we're taken back to Ezekiel 36:27
4) the law of liberty in Christ Jesus - is freedom; Justified. And once we are justified, we're taken back to Ezekiel 36:27
5) the law of Christ - Himself - saves us from the condemnation of the Law, so that now we can obey in love
But we are LITERALLY obeying the law to not have sex with animals because of the spirit in us. It makes no sense to say we don't have to obey. The fact that we don't want to means we automatically "are".
As to seeing Christ in the OT; that's exactly what I was getting at in my first post on this thread. Do you see Christ in the sapphire stones? Descending from heaven and being broken for man's sin?
Christ showed God's laws in their true form. To "go back" that Paul was referring to was to sacrifice for sin.