That'd also be an interesting thought experiment. The modern nation-state as a concept is barely a century old; before WW1, a number of prominent countries (Russia, China, Austria-Hungary, much of Africa) thought of themselves as empires or kingdoms, and people's daily allegiance was more toward local municipalities and neighborhoods than the abstract concept of a nation.

I wonder if at some point in the future we'll see pseudo-corporatism as a social organizing principle, much like in Neal Stephenson's books.