Hau, Henry. I am confused about some of the premises you seem to be supporting. Firstly let me say this, I am not saying Big farming should be scrapped. I am saying we must change methodology or perish.
Big Farming is all about using poisons, in the forms of fertilizer, insecticides, defoliants, all of which leach into the
water supply your drinking water comes from.
Feed lots create a very real cesspool situation of lakes or ponds of manure which regularly spill into the surface water supply.
Big Farming is production oriented, not Nutrition oriented, which means the food you buy in the grocery store, going up in price weekly, is not really feeding your body the way food is intended to do.
No matter what research shows to be the best option, Big Farming is always going to go with what is cheapest to use and get the job intended done, if that means feeding Arsenic (a poison, which incidentally doesn't go away) to chickens to keep them "healthy", then that is what Big Farming is going to do.
Probiotics, herbal extracts, etc. are far more expensive therefor they are not going to become the mainstream treatments, Big Farming doesn't work that way, they are all about
Profit and Production.
Growing food is a passion, no way around that simply because it has to be.
However, there is a difference in a country growing the food for its own people's consumption and a country growing food for their own people and all the other people on the planet.
At some point the current Big Farming system (both plant and animal bases) will collapse, it is far to dependent on low
energy costs, which if you haven't noticed are going up and the world oil supply will not last forever, it will go away at some point.
There are but a few countries that seem to think it is their responsibility to feed the rest of the world.
That is not what we, the folks that promote permaculture think, we think each country should be feeding its own people, with methods that preserve the earth not destroy it.
There are far to many people living today that don't understand that once the earth is dead, people are dead, period, end of the human story.
Continuing on the current path of destruction, destruction will occur, at that point it will no longer matter, every human living will die.
People are quiet capable of growing some of the foods they eat, they did it during world war 1 and 2 without thinking it was hard or nasty or not their place.
During the great depression, many people grew their own food, just so they could eat at all.
If people are so lazy that they don't want to grow their own food then they have to be willing to pay the price, that price being spending their money at the grocery store and living with the illness and disease that comes from unbalanced nutrition.
What you seem to be saying is; "No worries, we must continue doing what has not worked because it will eventually work. People must be fed, no matter that the food they eat doesn't really supply their bodies with the nutrients required for a healthy life".
I will, however, defend your right to your thoughts and beliefs. I just don't have to agree with them.
It is right now, on several farms, being shown that we can provide healthy, nutritious foods by using the methods of poly culture growing, it is also being shown on these same farms that No-Till, multi-layer plantings of crops work.
But if you go and ask 50 farmers who practice the methodology of Monsanto company types "would you change to these new methods that work better, cost less and produce more quality and quantity?" you will find resistance such that you would not believe. Why is this so? It is because "That's not the way my daddy or his daddy before him did it" and " There aren't any subsidies going to be paid to me if I do that".