True, it's baffling to think that they could find any fun in a jihad-free environment. Perhaps they will busy themselves with their second-favorite activity, treating women with unspeakable brutality?
Maybe they will have "men's" workshops on whip-making and Building Your Own Medieval Torture Equipment At Home. A financial advisor might give a talk on "how to avoid spending more than the bare minimum to feed your wife". Empowerment workshops might feature classes on "How to get her to shut up and stay that way".
When you have a 'culture' that is so screwed up that it views stoning women to death in the village square , beheading women because they are SUSPECTED of infidelity or cutting out people's tongues with a rusty knife and a pair of pliers as as being perfectly acceptable activities and "normal" redress of grievances, all sorts of opportunities may present themselves when you have thirty thousand of them together in one place.