Polygamy is not practicing religious beliefs. To me the government has all the rights to butt in, this is a case of child abuse. Church of Latter Day Saints are well known for the abuse of young girls. From experience I know how they work within this cult...my own niece was involved until someone finally opened her eyes. She had 3 children who were abused (in the name of the Lord) as they blatantly put it and to this day they are all seeing psychiatrists, I don't think they will ever be normal.
To say the government has no right to protect these kids is horrendous, someone has to do it. We're not talking about two people who get involved voluntarily, we're talking abuse hidden in the form of a religious cult.
These people actually think they will become gods at the end, they also act like gods in public around other people...they are always right and the rest of the world is always wrong.