Call a spade a spade already with zombies

Unrelated to anything important, I ask this question.

In books, why are zombies not f---ing referred to as zombies?

Or really, OMG FUCKING ZOMBIES!

They are referred to as "walkers" and "walking dead" and "hungries" and, oh good lord, when we have a name for them, why not just call them "zombies?" That's what they are, why would you not call them zombies? Zombies!

Okay, I think I can answer this somewhat. In the same vein that hackers don't like crackers (malicious hackers) to be called "hackers" in general, perhaps those who like to keep Haitian folklore separate from the whims of Hollywood directors insist they are called something other than zombies:

The term comes from Haitian folklore (Haitian French: zombi, Haitian Creole: zonbi) where a zombie is a dead body animated by magic. Modern depictions of zombies do not necessarily involve magic but invoke other methods such as a virus.
...
The English word "zombie" is first recorded in 1819, in a history of Brazil by the poet Robert Southey, in the form of "zombi".[3] The Oxford English Dictionary gives the origin of the word as West African, and compares it to the Kongo words nzambi (god) and zumbi (fetish).

Which is to say, the Wikipedia article on zombies is somewhat fascinating.

They're still zombies. Just call them zombies.

Zombie.

If the zombie apocalypse comes, I'm totally screaming, "THEY ARE F---ING ZOMBIES!"