What if your child was a danger to your other children?
I'm not talking about accidents where the others got hurt. I mean intentional. Hitting them, hurting them. What if they broke bones? Gave them a concussion? Threatened to burn everyone alive? Would you let the others suffer and live in fear bcuz "they are your child too and you can't just put them out"? Would you find them help where they wouldn't be around the others?