If a Christmas denier suggests that it's not a Christmas Tree, ask them these questions:
Is it a December Tree? No.
Is it a Winter Tree? No.
Is it a Chanukah Tree? No.
Is it a Nativity Tree? No.
Is it a New Year Tree? No.
Is it an Islam Tree? No.
Is it a Kwanzaa Tree? No.
Is it a Fourth Quarter Tree? No.
It's a Christmas Tree, and has been called such for decades.
If the Christmas denier insists it's a Holiday Tree, ask these questions:
What is the federal holiday the tree represents:
Year's end? No.
Time change? No.
The federal holiday it represents is Christmas, and has for a very long time.