The thing is, these dorks love role-playing as military in everything they do, so things like hierarchies and orders and taking Everything Very Seriously is what they'd be doing even if they weren't into militias. Those kind of things, conformity and discipline, are the things that cool leftists avoid.

They organize by being insufferable dorks who believe they alone stand between civilization and removed. We are cool and nice and people like us and that's why they're drawn to us and that's where we start to organize