It's about societal collapse.
When people are no longer safe in their day to day activities and don't know where their next meal is coming from, they tend to get very, VERY nasty.
This Liberal B.S. won't last a true test of convictions.
https://www.youtube.com/watch?v=EBAHzsqBmCA
While Lanius is just a fictional character, when the Real Life Die Hards come, The Muslim Brotherhood, ChiComs, etc, they don't play this pansy Bull Sh!t.
In that respect, it’s a useful mindset training tool. Forces you to think, decide and act like a survivor.