I think you're missing the points made earlier. The definition of Christian varies depending on who you ask. The word itself conveys nothing other than perhaps "worships Christ." All the rules added for what "Christians" must accept are disputed. If "worships Christ" is the definition, Mormons clearly are Christian (cue all the "but that's a different Jesus!" cries). If your definition is "believes what Pastor Johnson believes" then they wouldn't be. This is no different than any other ill-defined word.