Even if they did, God still condemns their practices and certainly doesn't want his followers to do the same.
2Ki 17:9 And the children of Israel did secretly those things that were not right against the LORD their God, and they built them high places in all their cities, from the tower of the watchmen to the fenced city.
2Ki 17:10 And they set them up images and groves in every high hill, and under every green tree:
2Ki 17:11 And there they burnt incense in all the high places, as did the heathen whom the LORD carried away before them; and wrought wicked things to provoke the LORD to anger:
2Ki 17:12 For they served idols, whereof the LORD had said unto them, Ye shall not do this thing.
How different in practice is the red highlighted scene above from a nativity scene under a Christmas tree? Or presents under Christmas trees?
Isa 57:5 Inflaming yourselves with idols under every green tree, slaying the children in the valleys under the clefts of the rocks?
Eze 6:13 Then shall ye know that I am the LORD, when their slain men shall be among their idols round about their altars, upon every high hill, in all the tops of the mountains, and under every green tree, and under every thick oak, the place where they did offer sweet savor to all their idols.
Putting things, offerings, gifts, under trees, to honor "gods". It's the same today. Most people are just unaware that they're emulating those very same pagan practices that God condemns.
Do you realize that Christmas celebrations grew out of Channukah celebrations? that the early Jewish Christians recognized the connection between Channukah and the angel's visit to Mary? Do you consider the eight candle menorah also an idol --- a pagan idol? Is there anything at Christmastime that is not pagan to you?
Do you have trees in your yard? You better cut them down and clear your land? Is planting a tree a pagan practice of putting up an idol? Are all of those millions of evergreen trees that Jews planted throughout the land of Israel pagan idols? Your position needs some rethinking.
The "groves" that idolatrous Israel was worshipping in those days were groves of trees that had their branches cut off and everything green removed --- they were symbols of the dead not the living. It was the same with the Druids. They carved up the natural groves of natural trees --- something entirely different from taking natural rocks and making an altar or natural branches and making tents with them or appreciating natural things. It was the engraving by the hand of man that made those things verboten.