You're showing your cultural ignorance, OP, just like all those whitesplainers in America who keep banging this drum even when non-American POC tell them they're idiots.
If you'd ever been to East Asia you'd see they love nothing better than decorating their malls with Christmas trees, baubles, lights and fake snow to celebrate Christmas in every country over there. Muslim Malaysia, Shinto Japan, Atheist China, Buddhist Thailand. I've been in all of them for Christmas and they love it. For them, it's nothing to do with the Christian religion, and erasing Christmas erases their cultural experience and reality, which is really ethnocentric of you.
It's literally telling people from other cultures they can't celebrate something because you think it's wrong and bad due to your own predominantly white cultural influences and understanding of the world.
And you're showing your ignorance of all the religions that came before Christianity. We've always had at least one celebration at that time of the year in NW Europe.
And lastly, most people are celebrating getting two bank holidays in a row. 🤷♀️