This. My first reaction was: `Severe anemics might start having to carry blood packs? Schedule regular transfusions?` It's kind of a silly question, regardles

This. My first reaction was: `Severe anemics might start having to carry blood packs? Schedule regular transfusions?` It's kind of a silly question, regardless. If the whole of America went vegan at once, what would happen to the resulting last generations of overpopulation of meat and dairy cattle? Would their meat be harvested for other purposes or be allowed to rot once they died out? There are so many variable points to even approach it hypothetically that it just gets ridiculous, and would contribute very little.