care to back that up with some facts?
Off the top of my memory a beef cow requires at least 2 acres of land and an average of about 60 litres of water a day.
Granted plants require more water per acre but 2 acres grows a lot more food per acre than any cow.
looking at your post in another way, the reason more land is used for plants is because of feed for the cattle such as soy and corn, not for human consumption.