Christmas does not have Christian roots, Jesus was not even born on Christmas day, if you study history you would see that Christmas is based on the Germanic pagan holiday "Yule" or "Yule Tide " to ease the transition of pagans to Christianity from the area in which it originates, In Some cases Yule Tide still makes it's way into statements for Christmas E.G. the Christmas carol "Deck The Halls" Yule was celebrated by bringing a pine tree into the house or town hall, decorating it, singing songs, drinking beer, remembering lost loved ones, and sacrificing then eating a Yule boar. Finally the children would put boots filled with straw outside for Odin's horse Slepnir while the god was on the "Wild Hunt" in hopes he would pass by, in exchange Odin would fill the boots with toys. Christmas is originaly celebrated by bringing a pine tree into the house, decorating it, singing songs, drinking egg nogg, remembering Jesus and eating a Christmas ham, finally children would hang stockings over the fire place to dry and hope that Saint Nicholas would deem them as good children and fill the stocking with toys, or if they were bad he would fill it with coal, see the similarities? Finally, all of the older images of Saint Nick depict him as a tall thin man with a long beard wearing robes and a pointy hat, carrying a staff, and riding a horse, almost the exact image of Odin when he is disguised as "the grey wanderer", Coca-Cola would reinvent the character into the jolly fat man we know today for marketing purposes, the sleigh and reindeer would replace the horse after "The Night Before Christmas" was written. TL;DR Christmas was originally Yule, a pagan holiday (Prepares self for hate)