It all makes sense if you move forward with the assumption that these people are nazis
If people just got over themselves and called it a comic book, that specific communication could at least be avoided, since there is absolutely no difference except that “graphic novels” want to be respected by a mainstream audience.
Not even a knock on the author, the label is probably from the publisher.
IMO “graphic novel” is a little more specific. Long-running superhero or manga series aren’t graphic novels, nor are newspaper comics.
Thing is, there are plenty of books that are called “comics” for various reasons, such as Maus, compilations of weekly publications of a non-strip serial (e.g. tankobons)*, and some other cases.
*compare to how many classic novels, e.g. work by Charles Dickens, were initially published chapter-by-chapter but are now read as compilations. Many manga as well as western comics also get published this way (e.g. I have an old Daredevil book that was originally published on a monthly basis but reads just fine consecutively as a unified book)
Right, a lot of “graphic novels” are serialized. But there’s a difference between Watchmen running for 12 issues to tell its entire story and some Superman series running for 12+ years. No one would call One Piece a graphic novel; it takes up an entire bookcase.
Fake news
the forehead groove in my desk is getting pretty well-worn