The meat vs. plant based diet debate always takes a goofy turn when individuals start throwing out the suffering animal/cafo/big ag angle. Protein is pretty much the same in plant or animal until additional animo acids and other elements found in meat protein that are not available in plants are brought up by scientists. Studies have shown that brain development is diminished in children on a strict plant based diet due to the non availability of these elements. And for the suffering animal argument, the reason the economics of confinement work so well is because the animal is not suffering and is able to maximize it's genetic potential to the fullest.