It doesn’t take an effing genius to figure out “Bad Santa 2” (2016) wouldn’t be as good as the original because Bernie Mac is effing dead, so is John Ritter, and Heather Graham must have been too effing busy to answer the phone. Half the main characters (Santa-suited safe cracker Billy Bob Thornton, elf Tony Cox, clueless Brett Kelly) are back, but that’s just not enough. There was something about the original that made its degenerate nature a guilty pleasure. This one has too much dirty and not enough whimsy. Like a 21-year-old Thurman Merman, the effing innocence is gone.