Why call them holiday trees? The politically correct people call it that so as not to offend Non-Christians. We know that as Non-Christian Jews, we aren't allowed to celebrate or have trees from that holiday. It's not kosher either way we call it. Admit that it's X-mas and let the Xtians call it what they want to call it. I say the same about the "holiday season". It's just the time before and after December 25 that people call the holiday season. I got offended as a Jew to call it the holiday season because our holidays are not part of that even if we have holidays at the same time of the year.