Christmas is my favorite holiday, I'm so glad billions of people around the world get to celebrate it too.
Are you sure that billions of people do celebrate it? I'm not sure that in Asian countries, this holiday is very popular
Well it is celebrated by many non-Christians as well as a majority of Christians. Consider all the Christians in Europe as well.
That's true, in South America as well.  It's just that almost half of the world's population is in China and India where I have doubt about the popularity of Christmas
That's a good point, but there are Christians where you do not expect it, for instance Christians now make up 10-15% of the Middle Eastern population