[bliteben]

If tomorrow everyone switches to your proposed vegan diet, where does all the saved power, water and land go towards?

growing cattle keeps the land from turning into concrete. If you actually want to conserve land you want to use as much already deforested as possible for growing crops and then never deforest new land. Slowly you should work onto getting conservation NGOs to integrate it into government protected land.

Seems to me like a fools errand to optimize land use. The optimal use in the Americas for example was likely already there 14,000 years ago before humans arrived in Americas. We obviously can't go back, but we can improve land, but optimal ....

[digging]

Are you seriously arguing that cattle ranching is what's keeping our lands healthy right now? I'm pretty sure just leaving them fallow would be infinitely better for the health of the soil and ecosystems within a few years.