Yuletide now refers to Christmas, but the word originally comes from Old English or Old Norse. It refers to a pagan festival that lasted for twelve days. Paganism is a polytheistic and hedonistic value system practiced in Northern Europe before Christianity.
It seems everything that goes around, comes around. So the Christians borrowed a pagan holiday to celebrate the birth of Christ (whose actual birthday is unknown). And after one or two millenia of lies, hypocrisy, misuse of power, episodes of intolerance, violence and gross exploitation (e.g. the inquisition, crusades, conquistidors and colonialism, to name just a few) the prevailing mood of this now Christian holiday has again become pagan--in the form of commercial hedonism. Christmas has become the iconic symbol of consumption capitalism. The glorification of "I, me, mine"-- spirit covered by matter, universal love co-opted by global greed. Merry Christmas!