You're on the right track, but getting the wrong conclusion. Green revolution agriculture is about a move from subsistence farming to cash farming. Nobody grows

You're on the right track, but getting the wrong conclusion. Green revolution agriculture is about a move from subsistence farming to cash farming. Nobody grows soybeans at scale for subsistence; their value is as a cash crop. It's not just for biofuels. The famed Ethiopian famine of the 1980s? That was caused by the introduction of export cattle farming, fencing off "property" and breaking the traditional grazing cycle that protected the land. Public land got overgrazed, and rivers got silted. And the export cattle? They were for the European pet food market. And European financial interests were all too happy to work with Western governments to put compliant Ethiopian governments in place to do it.