CIA disinfo at its prime.
I'm not going to argue about roundup treatment of grains before harvest. While I have not seen that here - our crops are mostly for cattle feed.
The disinfo?
"We all have to reject technology because we gon' die!"
Food production is the ultimate in terms of population control. Control who produces the food, control who gets the food, control who survives.
There is a truth in that the current farming practices are insufficient to provide for our level of consumption throughout the world. Not because of "the end of the farm" - but because consumption outstrips supply (somewhat… The way price fixing works is that farm conglomerates will let food rot rather than sell it for less than the federal compensation for 'lost crops'). More efficient uses of land exist, and have been rather slow to be adopted. Hydroponic systems and artificial lighting systems are more than capable of supplying our needs on a fraction of the land area and with far less requirement for chemical treatment and fewer concerns about runoff or other forms of contamination.
The farming methods pushed by many under this disinfo trap may not be bad ideas, per se, but they are completely impractical as a means of supporting the population densities we currently have. Which … Is the reason they are pushed.
There is another prong of this disinfo push. The CO2 "debate" is critical. All food crops aside from corn (maize) use the C3 photosynthetic cycle. Below CO2 concentrations of 100 ppm, C3 photosynthesis stops and plants die. Virtually all plant life is C3. Grasses are about all that survive in small concentrations of CO2.
In short - after a few hundred years of carbon sequestration, our planet looks something like Namek, or is probably closer to a global tundra or grassland. The only places where food could be grown would be in greenhouses with CO2 injection systems. The supply of carbon would then become a critical method of supplying food - control the carbon - control the population.
This would be a step beyond simple methods of making it hard to BUY food. You would be completely unable to grow it independent of a supply chain.
That is the long term plan. Part of it, at least.