Agree, although we might have a different definition on a few things. What you are stating has never been an argument I have made. What the argument we are discussing is people claiming God's Ten Commandments is not part of the law written in the heart and we no longer need to keep them, including the Sabbath, but that's not something taught through scripture. Of course love fulfills the law when keeping the commandments. When we love God we would only worship Him, we would not bow to idols, we would not use His name in an unholy manner, nor would we break His holy Sabbath day. If we love our fellow man we would not steal from them, or murder, or covet and Jesus taught on the Ten Commandments what the law is really about a heart change, He relates our feelings to how they affect God's law and if He changes us from the inside out, feelings of anger would turn to love and compassion and thou shalt not murder wouldn't even be a consideration. This is what it means to walk by the spirit of the law which is greater than the letter. If one is breaking the letter,, they are not keeping the spirit of the law.
Rev 14:12 Here is the [a]patience of the saints; here are those who keep the commandments of God and the faith of Jesus.
Through the power of the Holy Spirit
John 14:15 “If you love Me, keep My commandments. 16 And I will pray the Father, and He will give you another [e]Helper, that He may abide with you forever— 17 the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you. 18 I will not leave you orphans; I will come to you.