Since you keep being the top comment: I agree with your philosophy, but that is not how Biology often works.
When enough green pastures are around animals usually reproduce till that is no longer the case and they need to move to other pastures. They continue doing this untill all green pastures are occupied. After this they start competing with one another to compete for the green pastures already occupied. Some animals will be so succesfull that they take larger green pastures, letting others starve. If by some miraclelous event (ai?) suddenly a lot of green pastures arise, animals will simply reproduce again till they occupied all green pastures again.
Looking at us? The agraric revolution, neither the Industrial revolution, nor this ai revolution have decreased how much we work on our 'jobs' (finding food indirectly). All it did was increasing the population so that all green pastures became occupied.