The parapharased Bible here makes it very clear
https://www.biblegateway.com/passage/?search=Colossians+2&version=TLB
In a nutshell, keep looking to Christ the author and finisher of our faith and take no notice of those who tell you differently.
13 You were dead in sins, and your sinful desires were not yet cut away. Then he gave you a share in the very life of Christ, for he forgave all your sins, 14 and blotted out the charges proved against you, the list of his commandments which you had not obeyed. He took this list of sins and destroyed it by nailing it to Christ’s cross. 15 In this way God took away Satan’s power to accuse you of sin, and God openly displayed to the whole world Christ’s triumph at the cross where your sins were all taken away.
16 So don’t let anyone criticize you for what you eat or drink, or for not celebrating Jewish holidays and feasts or new moon ceremonies or Sabbaths. 17 For these were only temporary rules that ended when Christ came. They were only shadows of the real thing—of Christ himself.
https://www.biblegateway.com/passage/?search=Colossians+2&version=TLB
In a nutshell, keep looking to Christ the author and finisher of our faith and take no notice of those who tell you differently.
13 You were dead in sins, and your sinful desires were not yet cut away. Then he gave you a share in the very life of Christ, for he forgave all your sins, 14 and blotted out the charges proved against you, the list of his commandments which you had not obeyed. He took this list of sins and destroyed it by nailing it to Christ’s cross. 15 In this way God took away Satan’s power to accuse you of sin, and God openly displayed to the whole world Christ’s triumph at the cross where your sins were all taken away.
16 So don’t let anyone criticize you for what you eat or drink, or for not celebrating Jewish holidays and feasts or new moon ceremonies or Sabbaths. 17 For these were only temporary rules that ended when Christ came. They were only shadows of the real thing—of Christ himself.
There are Feasts of the Word which became Flesh, which foretell of events, some have come to pass, and some have not. Some have been fulfilled and some have yet to be fulfilled. Your preaching that that these "shadows" are Jewish festivals, and not God's, is common but false just the same.
Also, you preach in direct opposition to the Word's of the Christ.
Lev. 23:1 And the LORD spake unto Moses, saying,2 Speak unto the children of Israel, and say unto them, Concerning the feasts of the LORD, which ye shall proclaim to be holy convocations, even these are my feasts.
3 Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.
4 These are the feasts of the LORD,(Word which became Flesh) even holy convocations, which ye shall proclaim in their seasons.
Not Jewish festival as you falsely preach.
As this same "Word" said later on. "I am Lord even of the Sabbath. Same Lord, Same Sabbath, same Feasts.
"MANY", who come in Christ's name, reject and replace His Word's and make their own religion. The religious preachers of Christ's time did. But it didn't end well for them.
Matt. 5:16 Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.
17 Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
18
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
Because a little leaven leavens the whole lump, your false understanding of God's holy Days leads to your false understanding of Col. 2.
Col. 2:8 Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
There are religious "traditions of man" Christmas, Easter, Good Friday, Halloween, Lent, Ash Wednesday, Sunday Sabbath.
These are "High Days" created by man, not by the Word which became Flesh in the person of Jesus.
The Word which became Flesh created FOR US, His 7th day Sabbath, Passover, Feast of Unleavened Bread, Pentecost, Feast of Trumpets, Day of Atonement, Feast of Tabernacles, Last Great Day.
The former are religious traditions created mostly by the Catholic Church and adopted by her thousands of denominations which broke off of her but kept most of her religious traditions.
Paul is warning for us to beware, not of the Feasts of the Lord, but of "traditions of man". It's in your Bible, well, maybe not the translation you use.
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;
15 And having spoiled principalities and powers, he made a shew of them openly, triumphing over them in it.
Your preaching that the Feast's of the Lord are "against us", That Jesus reneged on His Word upon His death, and the He spoiled God, and made a show of God's Word, and triumphed over God's Word is just not true. It is the result of the leaven of your failure to accept that the Holy days are God's Not Mans.
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:
17 Which are a shadow of things to come; but the body is of Christ.
Notice Paul says they are a SHADOW of "things to come", not here yet. He knew they would still be a Part of God's Salvation plan, so he is telling God's People, "Don't let religious men judge you in your honor and respect of God and His Instructions and Feasts.
and he continues.
18 Let no man beguile you of your reward in a voluntary humility and worshipping of angels, intruding into those things which he hath not seen, vainly puffed up by his fleshly mind,
I believe it is important to be able to discern the difference between "man's" Traditions and the Word's of the Word which became Flesh. I think you and "Many" who come in Christ's name, have them confused.
I do agree with you about one thing though. We should look to the Word which became Flesh, the Author and finisher of my Faith, for instructions, not religious man and their religious traditions.