The author isn't Christian so why did he write A Christmas Carol?

After celebrating the joy and charity of Christmas, A Christmas Carol is foremost a condemnation of 19th-century Victorian England's division between the rich and poor, the Haves and Have-Nots. London was a great world power, rich from industry and colonial influence, yet poverty ran amok through its streets and factories. A Christmas Carol is not an overtly Christian tale. Dickens really wrote it as a reaction to rampant poverty in Victorian era England. Check more out on this at the GradeSaver link below: