This all sounds good, but, we don't know the carrying capacity of the earth.
The carrying capacity of the earth is far higher today than it was a century ago. And with regenerative agriculture (look up Joel Salatin of Polyface Farms) it carrying capacity will be much higher. And with energetic seed propagation it will be even higher still.
So, anyone trying to state a number for carrying capacity, is at best trying to hit a moving target, and at worst a lying liar.
Yes, it is sad that the govern-cement spends so little on actual health of people. But, is this really a bad thing? The information the govern-cement publishes about health is all anti-truth. The food pyramid panders to the big agriculture industry instead of to anything that is actual health.
If you went opposite to everything that the FDA has said over the years, you would be healthier then if you followed their statements.
Like carrying capacity, health is not something we have actually been studying. We have been studying its counter-opposite.