I agree we're raising far too many cattle, but just wanted to point out it's not very simple.
For IPCC it’s GHG mitigation and the vegan diet beats them all, while « all diets needs to provide full complement of nutritional quality, including micronutrients ».
https://www.ipcc.ch/site/assets/uploads/sites/4/2022/11/SRCC... (Page 488)
Edit : translate giec to ipcc
I agree we're raising far too many cattle, but just wanted to point out it's not very simple.