So, basically Christmas isn't secular. It's commercialized, yes, however the holiday is about Jesus, regardless of the "Yule" date etc.
For most people it isn't about Jesus. According to the New York Times Santa Claus is the number 1 most recognizable icon for kids American Feast - Only Santa Claus is Better Known to Kids than Ronald McDonald | Corporate Accountability International
Ronald McDonald is in second place, which means that, at best, Jesus is in third place.
This being the case, why do non-Christians celebrate Christmas? Is it hypocrisy?
People have been celebrating the Winter Solstice under a lot of different names, probably for as long as there's been people.
We call it Christmas. If we didn't call it that, we'd be calling it something else.