Cool cool cool, guess who grew up in Texas around 100 ranches? You aren’t accounting for how many times / much hay can be harvested from an acre of land, especially when you are talking about bahaia. While it may cost you a little more, to transport it to northern states its not 100 acres per cow. If your grandfather was a rancher, he definitely isn’t taking his cues from one granddaughter, especially if that’s how he raised your parent. We are a omnivores. We can get everything we need from both plant and animals, but as far as full chain amino acids- proteins, it is far more efficient from animals. The sad thing is we import a lot of meat, oddly enough from countries that don’t have near the land mass, and more people per acre than we have here and less regulation on how said how the meat was raised, so tell me if it take 100 acres of land to raise 1 head of cattle is possible?