> Animal feed is usually not suitable for human consumption, so while technically there would be an abundance of food, it would not be edible by humans.
> For corn for example, 7% of the harvest is suited for human consumption. The efficiency coefficient is pretty terrible if we throw away the remaining 93%.
We don't need to produce those 93% of corn at all. We can reforest fields/pastures used for meat production and store a busload of CO2 in the process - https://climatehealers.org/the-science/animal-agriculture-po...
> Farm areas that can grow human edible food tend to not be used for animal feed.
I don't know ... 75% of fields are used for animal agriculture, so one can easily get to that conclusion, but in my experience, those areas are intermixed (is it a word?). https://en.wikipedia.org/wiki/Environmental_impact_of_meat_p...
> The efficiency coefficient of food turned into compost is not that great with a lot of it turning into methane, get eaten by bacteria, and runoff into the oceans and water supplies.
How much methane does composting produce depends on composting method, aerobic composting is significantly better in this regard and in the end, composting is better than putting the food/organic materials into landfills.
Feeding the soil bacteria and enhancing the soil profile (with compost) is a good thing. We need more of those little critters.
Not so sure about the runoff - I think that argument applies to pesticides/herbicides, where it's a big problem. Compost is an organic matter, a soil in the end - but soil erosion is a problem, so I tend to agree :)
https://www.compostmagazine.com/compost-benefits/
> Vegetarian oil create a lot of by-product, much which goes to animal feed.
Seed oils are not healthy, not for us, not for animals, not for people eating those animals - https://www.youtube.com/watch?v=7kGnfXXIKZM