I was surprised when I encountered this same sort of resistance at the University of Michigan when I was a student there in the 1970s. My history professor warned me against writing a paper about the shortcomings of the Warren Commission report on the JFK assassination. "Most of the literature on this subject is junk," he said. That surprised me, since I was planning to use "Rush to Judgment" by Mark Lane as a primary source, and that book is well-documented and footnoted. I went ahead and wrote the paper anyway, and pretty soon my life was flooded with intelligence operatives. Later, I discovered that my professor had worked for one of the intelligence services during World War II. Too bad your book wasn't available back then. I could have benefited from it.
Thus, a story takes life-like events and gives them a sense of meaning and purpose that touches us. Even a story about chaos and the meaninglessness of life, if well told, can ascribe a quality of meaning and purpose to those 's why there's such a relentless desire for stories that are uplifting. They allow readers to feel that the "weight" of life is bearable. That solutions can be found to any problem. That no amount of pain is insurmountable, no obstacle unconquerable, if we have courage and persevere. That even the most painful sacrifice will be ultimately rewarded if we have faith.