It’s not so hard to understand. Let’s try.

ISIS wants your stuff. But, your government stops them from taking your stuff. Uh oh, the government is gone. Now ISIS shows up, and they take your stuff.

How did gangs take control of Haiti? How did warlords take control of Somalia? I guess those governments just decided to dissolve and hand over their monopolies on violence to other groups.

I think there’s a reason anarchists aren’t migrating in droves to anarchies like Haiti or Somalia.

OP is full of shit