I think arguing with that wider gap is problematic. It may apply for straightforward rape porn, but not for a lot of "consent-related" tropes that people enjoy in fiction. Like say teacher student fantasies, boss employee fantasies, romcom stalking tropes etc. For a lot of these whether or not the constellation is considered okay, or creepy, or a form of rape or coercion is not universally agreed upon. And many of these tropes overlap with fairly toxic views of relationships and and women.