G-d was removed from the classroom in the early 60's...it has been straight down the crapper ever since...
When they banned God by building that fake wall of separation they started dictating culture to the people. They began a long march through all our institutions to dismantle or culturally cleanse America’s secular morality and ethics which they targeted as influenced by God and therefore illegal. Since constitutional ideals come out of Christian thinking about justice, they cleansed all that, too.
In it’s place, they installed humanism which is amoral, anti-God Marxism with a twist of tribalism’s separation of hearts and minds by stoking race jealousy hate and revenge.