Well said, as always, Mary.
We accept the reality presented us. I don't think these women and children have any idea whatsoever how dysfunctional their lives have been. It's not until they get out and get some distance will they realize just how bad it really was. Imagine living in a world where your marriage can be erased on a whim and you be given to another man. Or, worse, having your children taken and scattered to other families.
Most of us here have already had a little taste of cult recovery, albeit on a much smaller scale.
Undercover is right though. The state will need to be very careful in how they proceed. They will need to establish beyond any doubt that minors were sexually abused. The obstacle they will need to overcome for the girls will, of course, be the "marriage" excuse. In Texas one must be 18 to marry without parental consent or judicial review. They may have a hard time establishing who exactly parent to whom.
For the boys who were sexually abused, there is no sham of a marriage to cover over.