$this->bbcode_second_pass_quote('dohboi', 'S')M, thanks for the input.
"They ate meat with nearly every meal it was a lot less meat than we eat in the 1st world but it was still there.
They also ate insects."
Yup, as I said, if we all eat a LOT LESS meat (with a few insects, fish and eggs sprinkled in once in a while), that would get us there.
But from the reactions on this and related threads, it's pretty clear that lots of people are going the opposite direction--eating ever more meat. That means others will have to make do with even less to none.
So all you blokes who like their steaks should be the biggest supporters of veganism in the world.
Those who are already eating very little meat (esp. beef and lamb) and dairy, fugetaboutit.

Those of us arguing here on this thread are all referring to entitled western culture. All of this chatter is absolutely irrelevant if you just consider a country like China (remember 1.5 billion bellies) whose dietary habits in the past 20 years have shifted radically away from mainly grain diets to an exponential increase in eating meat.