Population growth, or more specifically, the growing population of the stupid.
I say this because an ever growing population of the brilliant would be a wonderful thing. It's only a growing population of the stupid which presents an awful choice.
A ever growing population of the stupid will result in disaster. Because eventually when their numbers have grown sufficient to do something about it, the stupid will rise up and take what the smart have.
One side advocated the slaughter of most of the stupid people as the solution.
The other side advocated for integration. (Encouraging the smart people to breed with the stupid in an attempt to eliminate the vast chasm between the smart and the dumb)
I have come to believe this was what we were primarily fighting about in WW2 and what we have been taught was pure spin. There is a difference between spin and lie. I think the FACTS that we know are true about the war, the atrocities, ect. I am saying the SPIN of those facts that we learn in school has been intentionally misleading to hide the true motivations behind the war.
Fast forward 70 or so years .. and the problem has only gotten worse. The stupid population of the world has exploded and the effort at integration has largely failed, and may have actually aggravated the problem.
Attempts to educate the stupid people of the world have only made them more discontented and angry. Note, they haven't gotten any smarter... they are now just more educated.. which means they KNOW more. They now KNOW how crappy the piece of barren sand they have been fighting over is compared to other places which exist that are practically heaven on earth. They now KNOW how much they don't have and how much others do, ect.
And thus we are fast approaching another point of decision.
Because make no mistake, things can not, and will not, continue on their present course for much longer.
Wonderful analysis of a horrible truth!