I saw a good cartoon on Mastodon. Four strangers are in a subway car, not looking at each other. All four are thinking: "I hope civilization crashes. Then we will rebuild according to my ideals."

I have a prepper friend, who has an isolated cabin in the woods. Well stocked. That cabin will be a good target for roving bands of marauders when the police are no longer around. He thinks he can fend the marauders off.