A manger would be religious, a Christmas tree is NOT religious. I’m sure that school is full of Earth-worshiping symbols anyway.
Should have hung LGBT rainbow colored lapels on the tree along with water-filled multi-colored condoms. Then the teacher would have celebrated the diversi— errr perversity.
What a sack of shame some people truly are.. thinking they are wise they became fools.
Shhhh! Don't tell the School Thought Police, but a Christmas Tree is religious, too. It's based on a custom called the Jesse Tree ("And there shall come forth a rod out of the root of Jesse, and a flower shall rise up out of his root . . ."). You hang symbols of the lineage of Christ on an evergreen tree during Advent. A Jesse Tree is depicted on the stained-glass windows of Chartres Cathedral, from the 13th century.
Merry Christmas!