I think many people have had an idealized vision of Christmas maybe stemming from Charles Dickens or "It's a Wonderful Life". People who keep preaching about putting Christ back into Christmas probably are not terribly conversant with the bible.

Fortunately, the Yule Season has little to do with religion in spite of the fact that religious people attempted to co-opt the holiday for the promotion of their religious zeal.

I believe in a secular Christmas to be celebrated by anyone who wants to keep the tradition.
The absurdity of the abuse of this practice is highlighted by a Christmas pageant that I saw in Rockport, Mass. in the dead of winter. A camel rebelled against the freezing cold and showed his disdain for the procedure by bawling, loudly.

So put up your lights so that you won't have to burn down any trees to bring the sun back.