Imagine a world where literature was preoccupied with height. A character is always slotted in who's explicitly the token short character, and the storyline is always, subtly or not, written to highlight how the world is biased against short people. Authors are very cautious about depicting a short person with any negative trait; when they do, a direct line is drawn between the social circumstances they encountered and their future actions.

This would be exhausting, and people would rightly start to roll their eyes at it. And it would be fine for readers to object to it, even as short people are a component of reality. It wouldn't mean the complainant finds short people objectionable in themselves, but simply that they don't think height is a defining part of reality that all of literature is obligated to address.