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In many biomes, there were large herbivores living since ever. They are part of ecosystem and and if you remove them the biodiversity actually declines. Responsible grazing is not a problem at all.

What is a problem: unsustainable farming of grain/wheat to use as feed (or even feeding processed dead animals). Lumping these together is a harmful simplification.

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There's a vast difference in historical numbers of large herbivores roaming wild and the amount needed to supply demand for meat. If the current level of demand is constant, it becomes nearly impossible to supply as "grassfed"

How vast? We're basically talking of the same land - how many cows it could support directly vs. indirectly via feedstock production. I don't see any reason why it should be many times more.

Feedstock production is highly efficient. Grazing animals for meat is very inefficient in terms of caloric output. This is to say nothing about morality or even nutrition.

Perhaps, in ideal world, nobody would eat meat. But that isn't going to happen. And zealous painting any and all livestock farming as immoral and evil isn't likely to get us there.

Uhm, how was I doing that?

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