How do you think porn is actually different from (stereotypically) women reading erotica/romance novels/smut?

Obviously, there’s the “industry” aspect of it, where porn is worse in that regard. But when thinking about individuals and relationships, both of these seem to be very similar. For example, they both cause insecurities.

I’m also curious as to why guys insecurities caused by porn/women’s smut isn’t addressed pretty much at all compared to women being insecure due to porn.