>This is a large component of the alt-right, isn't it.

I couldn't tell you. YPG was dominantly left-wing and looked up to the former communist 'Apo'. I imagine the phenomenon is fairly politically universal.

>There is genuinely a group of people who'd rather fantasize about mass murder than do chores. Every now and again one of them actually picks up a gun. Then some school kids never have to go to events, or anywhere, ever again.

Yes there are people like that. Although most of the Kurds I met started fantasizing about fighting ISIS only after Islamic theocrats starting murdering and raping their population. I doubt many of them who gained a taste for combat were doing chores one day and started fantasizing they could live under a tyrannical regime so they'd have an "excuse" to "restart" the war.

Personally I don't think soldiers in need of a war have to fantasize too hard to come up with a morally acceptable outlet. I wouldn't look down on those who fought against the Russians in Ukraine or against ISIS in Mali because they need an outlet for their escape from civil life.

re right vs left: the usual metaphor here is red-brown alliance.