Christmas trees aren’t pagan - they are, in fact, an anti-pagan tradition.
Hmmm, don't think so. Trees as a sacred tradition pre-date Christian Europe. The book of Jeremiah mocks it as pagan:
Jeremiah 10:1-5
1Hear ye the word which the LORD speaketh unto you, O house of Israel:
2Thus saith the LORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them.
3For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe.
4They deck it with silver and with gold; they fasten it with nails and with hammers, that it move not.
5They are upright as the palm tree, but speak not: they must needs be borne, because they cannot go. Be not afraid of them; for they cannot do evil, neither also is it in them to do good.