I'm sorry, but there is absolutely no evidence or even suggestion that GB "raped or molested" his children. None at all. A 50 year old marrying a 20 year old may offend your sensibilities, but it does not equate to the guy being a child molester. Authorities can't just take someone's kids away from them and send them to live with a social worker because they have a hinky feeling about them.
Especially kids that need stability, warmth, and familiarity right now.
It makes no sense to me to further traumatize these girls, who are likely in shock, grieving, and still scared --> to be shipped off away from family? Now?
Based on suppositions about which there have been no facts?
It's really hard not to let personal experiences, preferences and emotions cloud judgement, but how about putting some faith in LE and the FBI (and their team of specialists), plus the hospital care givers who had the final say in this decision to send the girls home with their family?
I'm confident they put those girls' best interests front & centre.
And if that doesn't make anyone feel better, how about the fact that there is more than likely several agents with the girls and the family? Both for their protection, and their privacy, but also to glean whatever information they can from the girls. If you're right, you're right. And it will all come out.
But in the meantime, have some faith that nothing evil will happen on LE's watch right now.