I mostly see it as a bad faith argument for why the only possible productive use of x fraction of land is for growing feed and herding cattle and didn't know th

I mostly see it as a bad faith argument for why the only possible productive use of x fraction of land is for growing feed and herding cattle and didn't know the 'animal feed corn' and corn as a grain for people are the same crop. If it's basically the same level of involvement as as bleached flour, then the only real relevant issues are how to source a balanced protein so you don't have to eat half a kilo of carbs when you don't need the energy and how distructive other micronutrient sources are.