The zombie apocalypse provides a metaphor for moral plague. When a great deal of the population stumbles around like spiritual zombies, can other individuals still live a principled way of life?
Let's use the zombie apocalypse as a metaphor thusly: There's a moral plague in our society and, as time passes, more and more people fall prey to it.
Here's a way the metaphor might play out: When infected by this moral illness, people are no longer human, but feed off humans, including those they once loved and protected. We fight the zombies, chop off their heads, so they cannot hurt us—these once human but now spiritually derailed monsters.
As time passes, they rot, becoming less and less recognizable as human, and more and more terrifying. Despite our valiant efforts, more and more people are lost, even our loved ones. To protect ourselves from loved ones, we must decapitate them.
In this time of moral lethargy, when many people stumble around like spiritual zombies, what do we do?