> Edit: and there are ways of maintaining a healthy soil without animals. I have done it in a very small scale for my plantations (just 40m2) and there are examples of people doing it on a much larger scale. I have yet to find data about yields though, but they seem competitive.

Gardening isn't farming. All crop farms of any scale use artificial fertilisers that wash off the land an poison our rivers and wetlands its not sustainable. Cutting out artificial fertilisers and gmo crops would cut our crop production by 60%.

We need to go back to our old style of farming before the world wars where we rotated between crops and animals and used the animals dung as fertiliser.