What Precisely IS the Story of Human Civilization?

I love the sentiment here, but this is not an accurate depiction of the situation in which humankind finds itself.  In particular, there never was a time at which we considered ourselves brothers and sisters, etc.

Recently, the theory of anthropology that explains how our opposable thumbs catapulted our species forward changed from:

We were able to scoop out the protein-rich foodstuffs from shellfish and the like, thus increasing the size of our brains and ultimately enabling our dominance over the lower creatures, to:

We were the only species that was able to grasp clubs and spears, so as to murder one another.

In fact, many of our scientists believe that humankind is in an evolutionary cul-de-sac, where we find ourselves with too much technology, too little education, and too much hate and fear coursing in the chemistry of our “big brains.”

Perhaps this is a cynical viewpoint, but keep in mind that, nearly one quarter through the 21st Century, almost half of the people living in the most advanced country on Earth believe that Donald Trump was sent from God to make America great again.  I have to admit: that could be a death knell.