• As Tar_Alcaran said, most of them are really really right wing.
• ...and neck deep in 7 conspiracy theories and get-rich-quick schemes of the week.
• As Cory Doctorow puts it, "Prepping is a way of playing out a fantasy in which you are elevated to savior status, not an exercise in disaster-mitigation."
• The prepper market is absolutely rife with grifts.

Prepperism is a rabbit hole that your uncle falls down that makes Thanksgiving awkward and makes the whole rest of the family worry about them. Not a benign hobby. And certainly not effective disaster preparedness.

There's of course nothing wrong with having a kerosene heater in your garage or owning a generator in case your power goes out for a few days. But luxury bunkers full of hundreds of thousands of dollars worth of MREs bought from Alex Jones' online store? That's someone who thinks the government is all disguised extraterrestrials who drink child adrenal fluid to stay young and and inebriated. Except Trump who is prophesized to throw them all in jail.