most people eat starch that survive off their own land and hand work. Plantains, cassava, taro, potatoes, rice…
I think there is incredible value in the fruit crops we have access to today and preserving them beyond times of turmoil. roughly 60 varieties of tropical fruit you can make a meal of and about 30 in temperate climates. Veggies and greens are a big plus for colder climates. If people 100-1000 years ago could have got the variety of fruit trees we have access to today by and by mail/post lol, many would have focused more energy on fruit trees. since they did not they hunted more also. Some animal foods are have major downsides some not so many.
I think mixing animals with fruit orchards is difficult and intensive but is pretty awesome. streuobstwiese Is historically a pasture orchard in germany where cows or some ruminant would graze the grass and people harvest the fruit. gave people free time to build castles
If we combine tractors and agroforestry the options get fun and easy. It is all about perspective in the end also, everyone was living off the land 200 years ago and beyond roughly and one could also argue everyone still lives off the land today. However detached they may feel and be from that reality. It just takes humans surviving 1 future major catastrophe to put that into perspective if you don’t understand me… Volcanoes, asteroids etc have done more damage to earth, plants and animals than humans have so far. So in a way we are still sustainably living in modern times.