What does the law do for us?

Beginning with point #3 on my list found here:

3) In Galatians, Paul wrote to help those becoming deceived. They were deceived about sanctification, equally as they were about salvation.

You can see in the passage below, Paul explicitly lists both salvation ("the Spirit") and sanctification ("attaining your goal" and "miracles") as what they are deceived about:

“You foolish Galatians! Who has bewitched you? Before your very eyes Jesus Christ was clearly portrayed as crucified. I would like to learn just one thing from you: Did you receive the Spirit by observing the law, or by believing what you heard? Are you so foolish? After beginning with the Spirit, are you now trying to attain your goal by human effort? Have you suffered so much for nothing—if it really was for nothing? Does God give you his Spirit and work miracles among you because you observe the law, or because you believe what you heard?” gal 3:1-5

Reading Galatians convinces me that it is Paul's critical teaching that a Christian be told that they are not required or obligated, for obeying any of God’s laws (once a Christian). And my reasoning is because of the purpose of the law.

What does law do for us?

The law, any law, produces slavery in us to the sinful nature, as opposed to slavery to the Holy Spirit. Sin always takes advantage in us Christians when a commandment is present. “But sin, seizing the opportunity afforded by the commandment, produced in me every kind of covetous desire. For apart from law, sin is dead. Once I was alive apart from law; but when the commandment came, sin sprang to life and I died. I found that the very commandment that was intended to bring life actually brought death.” rom 7:8-10

When commandments are preached, bondage to sin develops:

“We know that the law is spiritual; but I am unspiritual, sold as a slave to sin. ... As it is, it is no longer I who do it, but it is sin living in me. I know that nothing good lives in me, that is, in my sinful nature. For I have the desire to do what is good, but I cannot carry it out. ... So I find this law at work: when I want to do good, evil is right there with me. For in my inner being I delight in God’s law; but I see another law at work in the members of my body, waging war against the law of my mind and making me a prisoner of the law of sin at work within my members. ... So then, I myself in my mind am a slave to God’s law, but in the sinful nature a slave to the law of sin.” rom 7:14, 17-18, 21-23, 25

How in the world can a Christian obey the following command: “In the same way, count yourselves dead to sin but alive to God in Christ Jesus. Therefore do not let sin reign in your mortal body so that you obey its evil desires.” rom 6:11-12 ....

...than by counting themselves dead to all law?

“For apart from law, sin is dead.” rom 7:8

“the sinful mind is hostile to God. It does not submit to God’s law, nor can it do so.” rom 8:7

“for before the law was given, sin was in the world. But sin is not taken into account where there is no law.” rom 5:13

“And where there is no law there is no transgression.” rom 4:15

Here is Paul’s direct answer for how to be free from the slavery of sin:

“For sin shall not be your master, because you are not under law, but under grace.” rom 6:14

We find the power to act dead to sinful desires when we are released from the stewardship of a commandment.

Assess the logic for me, please, please?