Two new movies, “8-Bit Christmas”, left, and “A Boy Called Christmas” bid for holiday immortality. One supposes this all could be read as “Christmas is the opiate of the masses.” After all, the grubby townsfolk don’t get “a living wage” or “fair governance,” but colorful knickknacks. How they remember it: Che Tafari as Mikey, Winslow Fegley as young Jake and …