This is why Christmas angers the atheists so much. They know that it is so enticing, and if their kids dig into it and discover Jesus, then it is even harder to avoid. You don’t raise a generation of atheists by letting them give Christ a test-drive even for a day. They are miserable souls, who have created their own Godless hell on Earth and they want to share becuase then they won’t feel so empty.
The atheists I know LOVE to celebrate Christmas. They just make it a day to give presents, and think of Santa Claus, Reindeer, snowmen, trees, snow, Grinches, and any number of distractions, that have little to nothing to do with the birth of Jesus.
If you assume atheists hate Christmas, you’re assuming they are rational, logical, and consistent to their world-view.
They are not. They cannot be.