No race or civilization of people are just going to say, "Oh, instead of using real meat, let's just mash up a bunch of lymph nodes and put a bunch of weird stuff in it and pack it up in plastic cans and plastic bins, and let's eat that way. That'll be great. " People don't choose that.
In order to survive, a plurality of true communities would require not egalitarianism and tolerance but knowledge, an understanding of the necessity of local differences, and respect. Respect, I think, always implies imagination - the ability to see one another, across our inevitable differences, as living souls.