LEITMOTIF in Dystopian Novels

IN 6-8 FULL MLA-FORMATTED PAGES WITH 1 MARGINS, DISCUSS THE EFFICACY OF EACH NOVELS DOMINANT LEITMOTIF AND SUGGEST FURTHER ONES THAT OFFER FURTHER INSIGHT INTO THE THEMES OF EACH RESPECTIVE BOOK. WHY DO AUTHORS INCLUDE SUCH REPETITIOUSNESS IN THEIR BOOKS IN THE FIRST PLACE? WHAT WOULD THESE WORKS BE WITHOUT THEM? YOU WILL NEED AT LEAST 5 REPUTABLE OUTSIDE SOURCES AS RESEARCH TO COMPLETE THIS ASSIGNMENT.
Books: 1984, Brave New World, and The Handmaid’s Tale