I mean that’s not what she’s saying. She’s making a Gramscian Marxist analysis of the zombie subgenre. Basically the base (settler colonial capitalism) is informing the superstructure (culture) which then further perpetuates and exacerbates the base in turn. If you think culture like movies and tv have no effect on the actions of the general population you’re just naive and wrong. Likewise, if you think culture comes out of nowhere to inform the actions of the populace you’re also wrong.

Capitalism --> rugged individualism --> zombie movies --> people adopting tactics and mindset of people in zombie movies.

NOT zombie movies --> people being violent Fascists lol