That's not true at all. He talks a lot about land rent, and argues that at the end of the day a farmer who rents crappy land and a farmer that rents good land s

That's not true at all. He talks a lot about land rent, and argues that at the end of the day a farmer who rents crappy land and a farmer that rents good land should make about the same, since the difference in rents will about balance the difference in yields. A tenant farmer is a small businessman, not an employee.