Bottom line though, THE PEOPLE. There are just too many #$%#$^% people on earth for 100% "hunter-gatherer" unless of course, people all became cannibals. Because then....
Oh, wait. Betcha in a lib think-tank somewhere, an advertising and public schools program is now being put together.
"Citizen...for a better tomorrow, EAT YOUR NEIGHBOR!" Along with hundreds of different recipes for "Long Pig".
For the planet.