Indeed. This time of year has been celebrated since at least the Neolithic! It has little to do with Christianity. The dates that are observed and the iconography of Christmas have been observed since well before Christianity existed, and Christianity actually engulfed these dates into their calendar, and made up stories and Saints and Saints’-holidays on already long-existing Pagan holidays and even Pagan gods/goddesses (Brigit celebrated on Imbolc and St Bridgid on 1st February, for example), to make conversion to Christianity more palatable.
This time of year is also celebrated across the Northern Hemisphere with holidays like Dongzhi in the Far East, Yalda in Iran, and many of the historical Sun gods from many ancient religions who were honoured at this time of year (many of which had a birth date around the Solstice), which have nothing to do with Christianity. Therefore, you don’t have to be a Christian or even religious to celebrate Christmas as it’s just long standing traditions of the Northern Hemisphere’s new year or rebirth of the Sun being celebrated.