> Any methane "emitted" by livestock is already present in the carbon cycle: cows eat grass which is made of atmospheric carbon. It isn't sensible to compare that to carbon from fossil fuels.
Considering that:
a. most cows in today’s world don’t eat grass, or rather, they eat a lot more soy, corn and other foods grown for them
b. the feed for the cows is grown using conventional methods to keep costs under control, which also implies using fertilizers that are produced from fossil fuels (also add the fossil fuels used in the transport of feed as well as the animals)
I don’t understand how your entire argument holds true. Seems like there are gaps in your model of the world.