clearly, we have come to different conclusions despite reading the same texts so you're going to have to do better than just say read the letters of Paul and James. I could say the same thing to you, but that's not a sustainable argument.
But you have done that which you claim above,by just stating,"Christ explicitly tells us which is the greatest commandment and it's not one of the 10 so why do you jump to the 10 and not the commandment Christ tells us is the greatest when you see the word "commandment"?",without explaining how you have arrived at this conclusion when others have concluded that this was in fact a reference to the ten.Is it really true that loving God has nothing to do with the ten?
After repeating the ten in the book of Deuteronomy in recounting the giving of the ten,the word declared:
"Hear, O Israel: The LORD our God is one LORD: And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.And these words, which I command thee this day, shall be in thine heart:And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes.And thou shalt write them upon the posts of thy house, and on thy gates."(Deuteronomy 6:4-9)
John gives the understanding also:
"For this is the love of God, that we keep his commandments: and his commandments are not grievous."(I John 5:3)
So to love God is not only about our feelings toward Him but includes doing His commands.
Both Paul and James help us to understand that the ten can be summarized to say,love God and love our neighbour.
"If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well:But if ye have respect to persons, ye commit sin, and are convinced of the law as transgressors.For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.For he that said, Do not commit adultery, said also, Do not kill. Now if thou commit no adultery, yet if thou kill, thou art become a transgressor of the law."(James 2:8-11)
"Owe no man any thing, but to love one another: for he that loveth another hath fulfilled the law.For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is
briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself."(Romans 13:8,9)
comprehended - to sum up:
Can you figure out which of the ten commands specifically point to loving God?