You are assuming wrong here 1776 - there is no separating the "thou shalt nots" and from the whole law (which includes the jots and tittles):
Gal 5:3 For I testify again to every man that is circumcised, that he is a debtor to do the whole law.
Paul stated that Christians were dead to the law, the whole law, he did not say it was done away in Christ. You can't be dead to something that no longer exists according to your logic.
Rom 7:4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
The law was still active when Paul wrote, otherwise in Galatians he would not be telling them they had to "do the whole law" if they became circumcised.
Let me try to explain it one more time L.
Exodus 12:5-6 KJV
Your lamb shall be without blemish, a male of the first year: ye shall take it out from the sheep, or from the goats: [6] And ye shall keep it up until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening.
That verse is part of the law, people under the law had to do that.
That verse is also a PROPHECY that Jesus would be our sacrifice.
That prophecy was fulfilled in Christ on the cross, ending the need for animal sacrifices... Christ's blood covers their sins from that point forward, the law ended when Christ became their righteousness. If you're righteous through Christ, what purpose does the law have?
The law ended but not ALL the PROPHECIES in the law were fulfilled, some of the law prophecies were fulfilled AFTER the law ended.
Matthew 5:18 KJV
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.