This is the same thing as "Happy Holidays" but a little more specific in my estimation. Happy Holidays is the politically correct version of Merry Christmas. Merry Christmas offends people who don't like Christ. Just like saying "Happy St. Patrick's Day" annoys people who like snakes. You can't make everyone happy. I think December 25th is for the celebrating of Jesus birthday. You don't have to celebrate it. You can make it through the entire holiday without confronting Jesus. There's virtually no evidence of Jesus in the Christmas holiday. Check out the retail stores. See any Jesus? Nope. Didn't think so...
Occasionally there's a nativity scene set up somewhere. This is happening less frequently because it's offensive to people who don't believe in barns and camels. That's really all the thing is, a barn with some people kneeling next to a manger. There have been court orders that force public buildings to remove the thing because it upsets people. Santa claus it okay, however. For some reason, overweight people with shaggy facial hair haven't picked up on the insult that is St. Nick.
Anyway, Merry Christmas.