Why are you asking whether it could exist? Why not ask where it is already happening? Not Area 51, that’s for sure. Everybody is looking at Area 51. Nor is it happening at HAARP. Nor the Grassy Knoll. Too many eyes.
The zombies are currently being grown in tanks and vats underneath the mountains somewhere in the Sierra. The dead are trucked in from all over the country. The military-industrial complex has made a deal with crematoriums to swap out bodies for dust from burnt mice. Or rats. Some rodent.
The bodies are shipped to this mountain redoubt, where they are put through the zombification process and then stored in frozen vaults. The plan is to release the zombies when it comes time for ethical cleansing. The zombies will eat only the righteous, leaving the world safe for thieves and corruption.
It’s ok because zombies have a short half life.They soon disintegrate into viscous masses of phlegm and smegma. This stuff rolls downhill to places where it can accumulate itself and when enough gets together, you have a Blob. The Blobs are in cahoots with the creatures from the Black Lagoon, which is where all the psy-ops are conducted. They write it “psy” but really it’s Sy. Or maybe Cy. Or maybe some dyslexic person didn’t understand that cyclops is different from psy-ops.
No matter.
The important point is that Homer did not have zombies in mind when he invented the Cyclops, so what we are seeing is really a perversion of history and literature. If only these people had taken Great Works of Literature in high school, we might have been saved this entire dust for bodies swappy thingy.