Liberal head in the sand
Not to long ago a New York Times critic wrote a nasty article about preppers. I think a lot of people think the world has always been this peaceful and as a result they think everyone else is crazy. Given, many of the people on the TV show strange, I think this was typical bias from the left.
Just because a particular catastrophe hasn't happened yet doesn't mean it is not likely to happen. I haven't died yet but I'm sure it will happen someday. It's all in the probabilities that keep increasing as society gets to be more complicated and a house of cards. Things like tsunami, earthquake, meteors, are unlikely. However, solar flares that could destroy modern electronic society have happened int the past (1850s). Nuclear EMP weapons that can do the same are already in the hands of N. Korea as well as Russia, China and Mideast countries. Several recent close calls with banking collapse in the last 30 years. Several close calls with USSR (confrontational and unintentional) in the last 50 years. Not to mention possible virus threats (1918 flu killed 4% of world population) that could kill enough people to shut down the food supply. Then there are terrorist with nukes from Pakistan and Russia that keep misplacing their plutonium. Just a matter of time.
In any case if you add up all these possibilities the total probability for deaths/starvation (yours and mine)due to catastrophe in the next 20 years is getting higher.