In point of fact, there are very few humans in this world who are not aware of God, consider them shown. But, this isn’t enough, it never will be enough. The story of Numbers is of a people surrounded by and living on miracles every day, and yet the reject God over and over.
Rather, it is our struggle to find our own way to come to grips with the nature of humanity its best and and most craven aspects. And, our nature is build in to the design, you cannot repeal it with laws, or manage it with furrowed brows. It must be tamed by each individual in their own lives for their own reasons.
The purpose of Religion was that this institution provided just this service, but people being people, are happy to see paths to feed their own base spirits even through the operation of such teachings. Or, more closely, people must construct a means of teaching morality and faith utilizing the very base nature that is at our core.
This is a struggle that those who follow Nietzsche would prefer to abandon. To let human nature run its course. Except, we have been there and done that too. It is called savagery. You cannot replace something with nothing, but to come up with something truly workable, you have to be at least a bit serious. The philosophers who have followed the nihilist point of view ultimately fall toward the idea that societies are only stable as tyrannies. Where a few privileged elites rule over the masses who are essentially slaves. This was the justification for Fascism, and ultimately the justification for Stalinism as well, and in much of this world today, it is the de facto way of life for humans.
But, is this what you want for your children? If you don’t, you have the tools to establish a world of freedom and peace, but you get no where without God and an agreed understanding of basic morality that reflects the reality of humanity rather than its aspirations and denials of that reality.
America for all of its flaws and faults was a better place 50 years ago. We have run a system of questioning every social premiss through the meat grinder of the lives of our children. Its not pretty. Our children are growing up wild, and are suffering. And, yet we distance ourselves from the answers.
Psychologists have studied the mind and speculated all sorts of theories, and as we learn more about the human mind, we become wiser. The ideas and notions of Freud and Jung who still tower like giants are also just so quaint at the same time. Our real problem is that B.F. Skinner has generally won this debate. We are a mass of learned behaviors right down to our emotional triggers, driven by primal needs that do not when to say when. Left alone, the outcome is toxic.