Mike Vanderboegh has some interesting thoughts on the popularity of apocalyptic fiction on the television and in popular literature.
One other thing that bears mentioning. Have you noticed that just as The Invasion of the Body Snatchers was a metaphor for communist infiltration in the 50s, that "zombies" resemble present day collectivists? They are ravenous, hard to stop, go around in bunches, cannot be negotiated with or reasoned with, only walled out or confronted with deadly force. It is no accident that zombie targets are far more popular at firearm ranges these days than bullseyes. Wanna shoot a collectivist and still be under the radar? Shoot a zombie target. Nobody objects to that, perhaps because they can't break the code. I mean, what is the functional difference, if any, between Nancy Pelosi and a flesh-eating zombie?
I never looked at shooting zombie targets as a political statement but, in retrospect, it makes sense. Perhaps it is time for gun owners to shoot more such targets while imagining the images represent the collectivist du jour. Shooting them in effigy -- so to speak.
If you can't nuke 'em from orbit, shoot 'em in the head. It's the only way to be sure.