I have theory. Is a combination of game theory and film theory. Call it gamefilm theory. And what is the theory i got?

The fact that Zombies are racist.

These zombies are green. They convert white/black/asia people to green by eating their brains. Converting them to zombie makes them green. They are trying to get Majority all green. In most apocalypse games or films they succeeded, making them even more racist than white people. If you are saying that zombies have minority colors too like yellow or brown, or even blue, then maybe you need to drink 7ph water.

Remember, is just a theory that makes no sence whatsoever.