What always bugged me about zombie movies is that no one seems to figure out a way to take advantage of it beyond total anarchy. I would expect enterprising individuals to see zombies as a potential tool. Like maybe figure out what makes them tick (they never seem to possess intelligent thought) and leverage them for a labour force or army. What are they fuelled by? Can they be taught to perform complex tasks through…
For zombies the point (and the plot) should always revolve around the existential dread of relentless, never-ending hordes of beings who want to eat your brains.
It's like the old story about the very best thing superman could do is simply turn a crank powering the world's energy. All that flying around saving people is actually a massive, inefficient, effectively people-killing, waste of time.
Try writing many series of comics about that though!