why aren’t you upholding the law of Moses?
Because aren't supposed to. Paul taught to be free from it. To uphold it is to teach bondage and to return to the to the weak and beggarly elements.
Gal 4:9 But now, after that ye have known God, or rather are known of God,
how turn ye again to the weak and beggarly elements, whereunto ye desire again to be in bondage?
Gal 4:10 Ye observe days, and months, and times, and years.
Gal 4:11 I am afraid of you, lest I have bestowed upon you labour in vain.
Gal 4:12 Brethren, I beseech you, be as I am; for I am as ye are: ye have not injured me at all.
Gal 4:13 Ye know how through infirmity of the flesh I preached the gospel unto you at the first.
Gal 4:14 And my temptation which was in my flesh ye despised not, nor rejected; but received me as an angel of God, even as Christ Jesus.
Gal 4:15 Where is then the blessedness ye spake of? for I bear you record, that, if it had been possible, ye would have plucked out your own eyes, and have given them to me.
Gal 4:16
Am I therefore become your enemy, because I tell you the truth?
Gal 4:17 They zealously affect you, but not well; yea, they would exclude you, that ye might affect them.
Gal 4:18 But it is good to be zealously affected always in a good thing, and not only when I am present with you.
Gal 4:19 My little children, of whom I travail in birth again until Christ be formed in you,
Gal 4:20 I desire to be present with you now, and to change my voice; for I stand in doubt of you.
Gal 4:21
Tell me, ye that desire to be under the law, do ye not hear the law?
Gal 4:22 For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman.
Gal 4:23 But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise.
Gal 4:24 Which things are an allegory: for these are the two covenants;
the one from the mount Sinai, which gendereth to bondage, which is Agar.
Gal 4:25 For this Agar is mount Sinai in Arabia, and answereth to Jerusalem which now is, and is in bondage with her children.
Rom 7:4 Wherefore, my brethren,
ye also are become dead to the law by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
Rom 7:5 For when we were in the flesh,
the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.
Rom 7:6
But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
You teach in contradiction to what Paul says about the old law.