I believe he suffers from the Dunning-Kruger effect and his completely unsourced post should create a huge red flag in any readers mind.
I'm not going to go point by point as the average HNer should be able to research for themselves, but I will respond to this gem that generated the largest facepalm:
> Nearly all food "innovations" of the last 100 years are unhealthy ... The only beneficial modification to the food system from a nutritional perspective has been fortification with certain key nutrients,
This is such a shockingly misguided statement that it hurts to read it. This is why I believe he suffers from illusory superiority, because I think his utter inexperience with agrology is leading him to think that he actually understands this field and can speak with expertise on it.
For a counter-point that "all innovation has been bad", one should only have to look at Norman Borlaug, known colloquially as "the man who saved a billion lives" and "the father of the green revolution". Norman Borlaug was Nobel laureate and agrologist whose research changed agriculture around the world and is credited with preventing billions from starvation.
The innovations of the past century directly allowed nations to increase wheat and rice yields by 2-10X, saving more than one nation from mass famine. I certainly would not label that "unbeneficial" or "unhealthy".
And this is just the elephant in the room in terms of examples, believe me when I say you could write books on the subject of the benefits of agricultural development of the past century. Entire schools are devoted to this study.