I don't want to tell you what or how to think about these holidays. I would ask you to seriously consider how God thinks of them. After all it is His opinion that matters and not ours. It is my opinion, that any time a church or ministry seeks to bring in the worship of other deities to the worship of the one true Elohim they enter into a dangerous practice of compromising the Gospel. To simply toss it aside and say that God understands our hearts to me is simply avoiding the question to get our own way. The main question should be What does Elohim really think. If we truly desire to please Him we will take the time and effort to understand what we are actually doing when we celebrate Christmas.
Here is a link about the pine trees rejoicing. This also has references to worship of our Father in it.
You can also check out their teaching on "sunburned" here it is an hour in length for the first segment.
Spurgeon on Christmas
The early church and Christmas
Jer 10:2 Thus said יהוה, "Do not learn the way of the gentiles,1 and do not be awed by the signs of the heavens, for the gentiles are awed by them.2 Footnotes: 1Lev. 18:3, Dt. 12:30 & 18:9, Ezek. 11:12 & 20:32, Eph. 4:17, 1 Peter 4:3. 2Dt. 4:19 & 17:3.
Jer 10:3 "For the prescribed customs of these peoples are worthless, for one cuts a tree from the forest, work for the hands of a craftsman with a cutting tool.
Jer 10:4 "They adorn it with silver and gold, they fasten it with nails and hammers so that it does not topple.
Jer 10:5 "They are like a rounded post, and they do not speak. They have to be carried, because they do not walk. Do not be afraid of them, for they do no evil, nor is it in them to do any good."
My blog also has some information on it
One other site to consider is this