Please try to explain to us why you call it "sinning" for gentiles to not obey the Mosaic Law--commandments not given to the gentiles?
They pertain to all men.
Is murder not a sin to you ?
Thievery ?
Adultery ?
Drunkenness ?
Paul wrote..."
But if ye be led of the Spirit, ye are not under the law."
19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness,
20 Idolatry, witchcraft, hatred, variance, emulations, wrath, strife, seditions, heresies,
21 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." (Gal 5:18-21)
It would seem that everyone not "led by the Spirit" is under the Law.
And all who commit works of the flesh shall not inherit the kingdom of God.
The real division between heaven and hell isn't the Law, it is the works of the flesh.
The flesh is subject to the Law !