Throwing a conervative film-maker overboard - - no, worse, implying that he's a hateful antisemite - - is not silly, it's vile. Krauthammer isn't just writing a "movie review," he's hurling vicious accusations about the character and motives of the filmmaker (and indirectly about the nature of the gospels and Christianity). So it's disengenuous of you to suggest this is merely about a movie review and opinions on the artistic merits of a movie.
Buff, Krauthammer's perspective is just as valid as yours.
Twenty minutes from now, you'll be in high dudgeon about something else.