It absolutely could. Not with the current diet but if there was a shift to less meat then we could substantially reduce the amount of land used in food production.
If we switched to a 100% plant based diet, there would be a strict decrease in the amount of available food. Animals eat things besides food that could have gone to humans. Land that could be used for growing crops is rarely used for raising livestock.
Straight out not the case. lots of animals are on farmable land. Also animals eat lots of our crops eg 80% of the worlds soy. Here’s one (of many possible ones) reference stating that we would only need 25% of the current agricultural land if the world went vegan. https://www.economist.com/graphic-detail/2022/01/28/if-everyone-were-vegan-only-a-quarter-of-current-farmland-would-be-needed
animals eat lots of our crops eg 80% of the worlds soy.
the vast majority of the soy eaten by animals is the waste product from soybean oil production. that’s a conservation of resources, and it’s a good thing.
your economist article obviously relies on poore-nemecek 2018, which is a paper i wouldn’t trust to tell me the CO2E of CO2
