Via Verso Books, McKenzie Wark defends Christmas in fantastic fashion:
Xmas is pagan, and this is what places it outside of Jewish and Christian understandings, of gifts, of aesthetics, of time. Christians understood its power and tried to coopt it. But the Christian version distorts it by tying it to the birth of their sacrificial savior. The pagan way is about understanding excess in and of itself, not as compensation for sacrifice.
What is essential to Xmas: there is a tree, and a gift for a child under a tree, that is “from Santa.” For the child, Xmas has nothing to do with ‘consumerism’. The gift just appears. Its a bit of what the surrealists called the marvelous. For the adult, it is a way to give to the child without expecting the child to be grateful to the parent. Rather, it is so the child can know that world itself could be generous.