A discussion is not where you dictate and I am not listening to you if I don't accept everything you say. I have listened to what you've said and I've give reasons for why I do not think your position is correct and reasons for why I think my position is correct, and this how a fruitful discussion should go. You brought up Colossians 2:16 as saying that we should not let anyone judge us for not keeping the Sabbath. However, I made the point the people judging them were not teaching people to keep the Sabbath, but we teaching all sorts of human traditions and precepts, so the correct way to interpret Paul is that the Colossians were not to let anyone judge them for keeping the Sabbath. I am still waiting for you to interact with this point.
Then you should trust in his finished work instead of doing the opposite. According to Titus 2:11-14, our salvation involves being trained by grace to do what is godly, righteous, and good, and to refrain from doing what is ungodly and sinful, yet you are speaking against obeying God's instructions for how to do that. In verse 14, it says that Jesus gave himself both to redeem us from all Lawlessness and to purify for himself a people for his own possession who are zealous for doing good works, but you have returned to the Lawlessness that Christ gave himself to redeem you from and are speaking against following God's instructions for equipping us to do every good work, and have thus missed the cross. According to Romans 8:4-7, it is the carnal mind that refuses to submit to God's Law in contrast with those who are walking in the Spirit.
When you make a glaring error in how you are interpreting Scripture, that error doesn't go away just because you keep repeating. I'm not looking for you to repeat your position, but rather I'm looking for you to interact with my reasons for why your position is wrong.
Indeed, the Mosaic Covenant is all about Christ and how to have relationship with him, and in fact, it was a marriage to him, but people have no seen this because of the veil over their eyes.