You say 9 of the 10 are moral laws but use col 2 to prove the sabbath was a shadow law.
Col 2 is specific about which laws were nailed to the cross.
Eph 2:15 Having abolished in his flesh the enmity,
even the law of commandments
contained in ordinances; for to make in himself of twain one new man,
so making peace;
The law of ordinances...
Col 2:14 Blotting out the handwriting of ordinances that was against us, which was contrary to us, and took it out of the way, nailing it to his cross;
What was blotted out and nailed to the cross? ... the law of ordinances
Verse 16
Col 2:16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:
Sabbath days were a big part of the law of ordinances.
These sabbath days were rest days that fell on any day of the week. Including the 7th day...
Prove that the sabbath mentioned in Col 2:16 is the 7th day sabbath of the 10 commandments.
The annual sabbaths were ceremonial ordinances designed as temporary shadows pointing to the work of Christ.
The 7th day sabbath was created before sin.
The ceremonial "sabbaths" were part of the "handwriting of ordinances" delivered by Moses to the children of Israel. These days were connected to annual feasts, meats, drinks, and sacrificial offerings that prefigured the mission of the Messiah.
They were a shadow.
How does the weekly sabbath become a shadow of Christ. Don't say He is our rest, because the sabbath would need to be 24 hours 7 days a week.
These shadow days—such as the Passover, the Day of Atonement, and the Feast of Tabernacles—were "shadows of things to come," pointing forward to Christ's sacrifice and ministration.
If you use one verse to hold up the entire argument and this verse is questionable and contradicts other verses your argument is very weak.