The point was that you were wrong when you said the living and the dead have nothing to do with each other: but you also interpreted the analogy backwards- if we are dead to the law, then we are the dead spouse being mourned, and the blood of Abel crying out to God, not the other way around.
Sin is the disease, not the law. The law just tells you that you have the disease and that you're going to die. Jesus takes away the sin so that the law cannot tell us were going to die from our disease. Read that whole chapter- You are dead to the law and it's judgement on you when and IF you mortify the deeds of the flesh by walking in the spirit- and that's whether you know the law, or you don't. But if you're out there fornicating and stealing, you obviously aren't walking in the spirit, because the spirit does not lead you to do those things. You're delivered from the power of the law because the spirit makes you righteous, not delivered from the knowledge of the law because the spirit deletes your knowledge. Look, Paul is not under the law- he is led by the spirit- but he still has knowledge of what is good and evil. He explains what walking in the flesh and walking in the spirit looks like.
This I say then, Walk in the Spirit, and ye shall not fulfil the lust of the flesh. For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other: so that ye cannot do the things that ye would. But if ye be led of the Spirit, ye are not under the law. Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness, Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies, Envyings, murders, drunkenness, revellings, and such like: of the which I tell you before, as I have also told you in time past, that they which do such things shall not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, Meekness, temperance: against such there is no law. And they that are Christ's have crucified the flesh with the affections and lusts.
First of all, babies don't clothe themselves because they can't. Secondly, they would clothe themselves if they could, for the same reasons adults do= you don't have to "know good and evil" to understand the benefits of clothes.
Are you kidding me right now? That is what Jesus and the Apostles call charity/goodwill/ or "love". That IS the fruit of the spirit. That is walking in the spirit. Being a doer of the word. That is the evidence your faith is alive, as long as you don't let your left hand know what your right hand is doing and you don't have some ulterior motive.