Screaming at children over their grades especially to the point of the child's tears is child abuse pure and simple. It's not funny and it's not good parenting. It is a crushing scarring disastrous experience for the child. It isn't the least bit funny.
This society cannot go forward the way we have been going forward where the gap between the rich and the poor keeps growing. It's not politically viable it's not morally right it's just not going to happen.