I take the same view as
LynnDoyleCooper - IS is IS, it doesn't matter whether you're a fighter, a social media influencer, head of their medical services or a baby-maker, you're there to play a role in a project - a genocidal, slaving project.
Think of it as a Ships' Company: the catering team, or the purser, or the bloke who keeps the engines running are no less a member of the ships company than the Captain, or the bloke who arms the ships helicopter, or the woman who fires the ships missiles.
It's a joint effort, with a defined, agreed objective. If you're there (or supporting from elsewhere) you're as involved, and as guilty, as anyone with a rifle, or a bucket of petrol, or with a child's blood on your cock.