Not everyone has to farm and hunt. It was more than 200,000 years ago that humanity figured out how not to get all of us to farm and hunt, way before capitalism ever was a thing.
Speicalization in the context I used does not mean “be an expert at a thing”. It means “Spend most of your time doing just that one thing”. I can see why you were confused, I think my use of “pigeon-holed” was probably better than specializetion.