The owners in any society almost always have the guns on their side, and they can outgun anyone else. That's what makes them the owners. They can outgun any farmer, because the farmer spends all their time farming but the owner's goons spend all their time training in violence.
I wouldn't be surprised if multiple nation-states already had them without calling them such because 'Look, someone pushed a button 3 hours ago before it engaged'. Once the private capital gets their hands on them, we immediately transition to cyberpunk no matter what else happens in the world.