you obviously don't understand the Bible
First of all, the majority of those people who died back then deserved it, second, the bible says that children don't go to hell, and third God was showing us that others are affected by our actions, so yeah, children and babies died along side their retarded parents who messed up their lives, the same thing happens even today. It's obvious that you're an athiest, but try to understand the Bible before you start making an idiot of yourself.