I hypothesize that a firearms community would be as good as any to Trojan horse mutual aid networks.
Whenever someone starts on a rant about a rugged individualism fantasy... they'll buy guns... build a bunker... fuck it, whatever... I'm always like
"Yeah that's a great idea. Let's get a group of us and do that. Find some land, dig in a bunker. I have a buddy with a backhoe. Let's do that but build it for 14 people"
Every time it just unravels as a fantasy rather than a genuine plan or genuine desire. But if it ever hits I'd be delighted to grow a rugged individuals co-op.