It doesn't have to be.
Even if you don't view it or celebrate it as is traditionally done that is ok.
Because the real message in Christmas is universal, it crosses all cultures and traditions.
The message is basic and timeless.
It is the giving, but not of material goods. It is the giving of kindness and consideration and thoughtfulness, not just to those we love, those who are near and dear.
But to all of mankind equally and without judgement.
A quote from Dickens -"A Christmas Carol"
"But I am sure I have always thought of Christmas time, when it has come round -- apart from the veneration due to its sacred name and origin, if anything belonging to it can be apart from that -- as a good time; a kind, forgiving, charitable, pleasant time: the only time I know of, in the long calendar of the year, when men and women seem by one consent to open their shut-up hearts freely, and to think of people below them as if they really were fellow-passengers to the grave, and not another race of creatures bound on other journeys. And therefore, uncle, though it has never put a scrap of gold or silver in my pocket, I believe that it has done me good, and will do me good; and I say, God bless it!'"
Keep the holidays in the spirit they are intended.