The way they keep women under control is by getting them pregnant when they are very young, so they are bound to the child and also to the man. The woman who wrote about her escape told of how she was kept under control though threats to punish her children for her sins. She decided to make a break for it when the "church fathers" started grooming her daughter for the pleasure of one of them.
How do you know? We haven't searched all of those 'compounds' yet. God only knows what goes on in all of those Texas compounds.