Actually...No they are not.
The feasts were GOD'S feasts. They were celebrations for the Hebrews to celebrate God and what he had done for them.
Today, Gentiles are adopted into the Hebrew family tree. Their celebrations of God should be our celebrations.
That is why we have adaptations called Christmas and Easter, about the Savior.
“Today, Gentiles are adopted into the Hebrew family tree. Their celebrations of God should be our celebrations.”
...Yes, the gentles are adopted into the Hebrew family tree. That is why on Christmas eve, the reading of Jesus’s family tree leading up to His birth, as in Mathew is read in a number of churches on Christmas Eve.