My mom likes to put up a tree, and put up the lights. She just looks at it as something to do and decorations. My mother as professed her belief in the Lord Jesus Christ, had came to this world, died, was buried, and resurrected. That gives me reassurance that all she does is try to live by the spirit, even though she struggles in the flesh just like the rest of us. To become rooted, and share the message of Christ is the answer to all of the worlds problems that come and go especially with the breaking down of our bodies, sickness, and death, that in Him, he has taken care of it all for all the world. Not to condemn the world, but to save it according to what he suggested in John 3:17.
For me, I do not care if people put up a Christmas tree, or cook and gather together and eat food, and christimas lights, and watching the Macy day parade, as the end of the day, do you have faith in God, and do you put him first in your life, and love your neighbor as yourself ; and go about without condemning them but share the Lord as the answer to everything which leads to new spiritual life in faith?