"The Great Dictator," "To Be or Not to Be," "The Producers," there's always somebody complaining that these comedies trivialize Hitler, and "Jojo Rabbit" has those critics, too. It also belongs right next to them as an inventive, comic masterpiece. Tarantino was dragged for his "cavalier revisionism" when he killed Hitler in "Inglourious Basterds," and the cartoonist art spiegelman for using funny animals to tell his father's survivor story in MAUS. Unless you present it as "Schindler's List," there's always a…