Some better versions of this take might be “In the culture war many people are only willing to consume media that perfectly signals their virtues, so even innocuous content can seem antagonistic.” or “Our culture changed and I don’t like it anymore, get off my lawn.”
For the most part I think this culture war is a figment of the media's imagination/desire. I think people just don't want to read for the most part—even those who purchase the books.