[Liesmith]

They aren't, though. Zombies are vastly inferior in all ways (including destructive potential) to their videogame-playing foes. You shoot them down in their thousands.

[mturmon]

Perhaps (in line with the opening comment) having a formidable foe that activates real fears and buried pain would no longer be amusing.

Indeed, perhaps it is concealment and forgetting that we long for by playing video games where thousands of zombies are slain.

[megablast]

If you compare one zombie to one bully. But if you think that one bully = all the zombies in the game, then it is not so easy to overcome all the zombies.