As for the children...God can and does take little children out of destructive situations which will harm their delicate soul..and if it means by death then that is a relief for those children for they will be immediately in his presence...but he never intended their life would be so full of such evil perpetrated by parents as well as leaders.
The world had and was becoming more and more vile as tribes and nations departed from the living God and designed their own pagan Gods...and they were teaching their children in direct opposition to God. He spared these children by taking them home to Himself. Which for a time God tolerated...just as he has in this country. But when evil escalates more and more God will take it out..and we should anticipate this is so for He is a also a God of Justice and His Judgment's are always right. Another important fact to consider is there is a battle between God and satan...in the heavenly realmns which we see eidence of being played out here on earth. Satan knows he cannot harm God as he would like...but he can hurt God by his attacks on mankind. Thus we see men become anything but good and right when they have departed from God.
See, this right here is the problem. There's a difference between a deity taking away the lives of innocent children, and people doing it in the name of the deity, based on the orders of a "prophet". Additionally, the video mentions the part about how a child was made to suffer mercilessly for seven days (David and Bathsheba's child: 5:04 in the video above), writhing in pain, with no recourse, and ultimately dying. What was the purpose of this merciless death? To prevent it from committing sin when it grew up? Is that even an argument?!!