I just want to address this one point.Hi Chaos Christmas for the non religious? Ok this has been done for a long time. The fact is that santa, reindeer and elves is the non religious aspect of Christmas.
Santa is based on an actual person (and a saint at that) named Saint Nicholas. Saint Nicholas - Wikipedia, the free encyclopedia
Sure, it's really evolved past the original intent but the backstory is still there which I think is cool.
In a strange (and small )way, I think non-religious people celebrating Christmas is cool in the sense that they're acknowledging Christ. Heck, Christ divided time in two, our calendar is based on him so people do that just from saying the year in a very small way.