My position is a result of my experience.
If there is no proof that the parent is abusive, give them a chance! They may surprise you.
My position is the result of mine, my sister's, the other children's who were in the same place and hundreds of others whom I consider my closest friends.
Available research promotes the position that what happened to us is not the isolated rarity it should be. And I am unwilling that any who can be saved from that be abandoned.
I have never demanded intervention out of hand, or the assumption of guilt. But I do insist that since numerous allegations of sexual abuse have been made, that these children be protected to the best ability the state can muster during the investigation. And in reality that can not be done by assuming that any custodian from the place they just came from is safe.