It cannot be understated just how bad the whole occult and satanist moral panic in the 1980s was, and how there was a special focus on Dungeons & Dragons as a moral scapegoat. It was not just a matter of the religious moralists condemning the property as evil. There was a Middle America backlash, fueled by stories that teenagers were committing suicide or going crazy, that people were unable to distinguish between reality and fantasy, and that roleplayers were caught in a web of occultism, evil, murder and suicide and so forth. And that lingered into any roleplaying game. And it lingered into anything in the Fantasy genre. There were preachers condemning He-Man.
The question becomes, what if this became such that it legitimately ran TSR out of business, and sufficiently tainted the whole of the Fantasy genre?