Well of course on macro scale EVERYTHING takes more resources and with supermarkets existing those are required.

If we could all be more self sustainable then we'd all have our own chickens, small veg/herb Gardens even if it's one of those small rectangular planters and even compost so farms only have to deal with cattle and large scale grain farming.

But to do that one thing that would need to be done is reassess and re imagine how cities are designed as current cities naturally oppose this self sustainability.