For instance, the Civ games are basically Whig History: The Game, presenting liberal capitalism as the ideal end point for all societies. It even includes uncivilized "barbarian tribes" whose sole purpose is to be exterminated so you can take their land for the glory of capitalism.
I had no issues with 20th century zombie movies in general, but the 21st century zombie fad was loaded with cryptofascist power fantasies and even inspired that "thin blue line" ideological disease that continues to spread.
It was kind of ok as a power fantasy at first. It seems fine when you're only dealing with zombies around a single shack conjured by a magic book and using a chainsaw and a shotgun. There's less ideology when the zombies are literally monsters that just climbed out of the fucking grave too.
The problem is when you scale it up to civilisation and societal commentary. The "existential threat" and "we need hard borders and strict military control" as a survival mechanism plays directly into fascist ideology.
I think there's something to be said for how large the difference is between magical zombies and human beings that recently got infected and might possibly be curable.
One is the undead, the other is a sick human being. They create very different scenarios.
I, too, am a Bruce Campbell enjoyer.