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.
Christmas trees have nothing to do with asherim. Asherim were worshipped, Christmas trees are simple decorations.
The ancient Germans worshipped groves of trees as sacred and believed that trespassing in the sacred groves would bring death.
Saint Boniface, the Apostle of Germany, evangelized the Germans by taking an ax, striding right into the middle of the sacred grove, chopping down one of the sacred trees and dragging it back to his home - an act of unbelievable profanity to the pagans.
Yet the "gods" of the grove did not strike him down.
It is to commemorate Boniface's victory over this superstition that German Christians traditionally chopped down trees to celebrate the clearing of pagan darkness and the coming of the Christ child. And, as an American Christian who happens to be of Germanic extraction, I will continue my ancestral tradition of thumbing my nose at the false gods of the pagans.