The question is whether Stoics are all Scrooges. At least inwardly, since they have been represented as lacking a rich emotional life. (That is flatly false, by the way, but a topic for another time.) 

Christmas is an extended festival of joyful hope, gift-giving, concern for each other's welfare, and special concern and care for children, the sick, the poor, the old, and those who are overburdened. It is organized around the retelling of an event of great emotional potency and complexity for believers – the birth of a child whose existence is directly intended by God, in circumstances which are impoverished and dangerous, and who is destined to be executed as a common criminal, only to be resurrected and become the Savior to all those – and only those – who believe in him. The festival is typically organized in a way that emphasizes the joy at the sight of a healthy mother and her newborn, dresses up the impoverished physical circumstances with shepherds and wise men arriving with gifts in celebration.  

Most Christians celebrate the festival by focusing on the beauty and wonder of the event itself (not the crucifixion it portends) by decorating their houses and churches and public spaces, giving gifts to each other, making special efforts to help the poor, and making Christmas an indelible experience for young children – in part by telling the story over and over again, in Christmas carols, Christmas plays, oratorios and ballets, and readings of the Christmas story (especially the one in the Gospel of Luke; sometimes the one from Dickens).

___

"Stoicism cannot be collapsed into a form of religious life that makes necessary appeals to the guidance or edicts of supernatural powers, and is therefore vulnerable to crises of faith."

___

Not all Christians can bring themselves to participate in this festival of good feelings, of course. Some people have to work – or scrimp and scrape, or go into debt – to make a Christmas for others, and are too tired or resentful or beaten down to be uplifted by it. Others have principled objections on Christian sectarian grounds. (No singing, perhaps. No Christmas decorations or gift giving.) And Scrooge needed what amounted to a supernatural intervention to join in.