Once a person, or a group of persons, enters into a covenant with Jesus, there are only two paths forward: progressing from glory to glory, or progressing to become something worse than what you were before entering the covenant. One path that is not available is to go back to a previous stage of development.
Today in the West, Christian morality has become an autoimmune disease. Whereas is the past, Christian morality was a cure to the disease of sin, now that same morality is being used to justify all kinds of destructive and evil ideologies.
The way forward now is not to try and get back to the days when people respected Christian beliefs, although did not believe themselves. The way forward now is either to become something worse than we were before ever hearing of Christianity, or to move on to a more glorious state. To move on to a more glorious state requires a newer and stronger dedication to Jesus. Will it happen? Is it too late?