The difficulty is that any kind of gardening or agriculture is essentially unnatural, so the balance has to be carefully restored and sustained. This means that you cannot righteously have your veg patch at one end of the garden which is an organically correct zone, and at the other end of the garden have a flower bed sprayed weekly with fungicides and a path between the two where the weeds are controlled with weedkillers. The ladybirds that eat the aphids on your fennel also eat the aphids on your roses, just as the hedgehogs, thrushes and toads that eat your slugs do not differentiate between the poisoned ones in your rockery and their cousins in the so-called 'organic' bit of the garden. The upshot is that if you want organic food from your garden then you must go whole hog and make your entire garden organic. So there is no boundary between organic gardening and recycling, in not using peat because of damage to wetlands or trying not to waste power.
Gardens are private and personal.
The food on your plate should relate to that idiosyncratic reality. We want local food for local people and it doesn't get any more local than your back yard. Your soil, your weather and your climate is parochial, even in a big metropolis. By dealing with it on a daily basis you are connecting to the foods of your region. This is not a retreat from the nasty but unchangeable facts of modern life.