The women who were arrested and had newborns taken away because the state is seeking to protect girls from underage marriage (and who marries a newborn?) - absolutely should sue.
The traditionally married families of a husband and wife and children whose children were taken, yes, sue.
So should women whose children were scattered all over the state and then told get a job AND visit the kids AND attend classes - and you get no help from a state that considers you so helpless and defenseless that you cannot protect yourself and children from abuse.
Drug addicts on welfare get more help to adapt to society than the FLDS women did.
AND it was all done on a prank call.
The state will be paying for this big time.
Analogy: Let's say you have either a religious summer camp or a religious boarding school where minors have been abused, and the "dorm counselors" live "in-house" with the abused minors. Now let's say in this scenario, you have both "dorm counselors" who are the perps -- and most who aren't -- but they all knew about the realities of what was going on.
Now, do you think law enforcement folks are simply going to conclude that dorm counselor "moms" and dorm counselor "traditionally married couples" not directly guilty of the abuse are not going to be initially arrested or at least separated from the victims?? (Especially if all who was a victim in such a case was still to be sorted out?)
Here's the legal bottom line: Many of these people in TX, for the most part, were NOT living in wholly separate quarters from where the abuse was going on. Hence, authorities needed to at least temporarily separate them from the victims & potential victims until it was all sorted out.
The other likely conclusion is that you'd probably be hard-pressed to find another adult in that compound who didn't know about all or most of the cases of minor abuse going on there. (And you'll note you don't find law enforcement folks going after "traditionally married" couples who were complicit in this abuse or abuse cover-up...If you have knowledge of child sexual abuse, and don't act to uncover it, you are guilty before God -- and in many legal venues, before man).