One Ukraine or Two?

Who hasn’t thought in terms of national identities, stereotypical and misleading as they are? He’s an American, someone might say, or she’s French, or those folks over there are Japanese, and so on.
We know such identities blur and dissolve upon closer inspection. There turn out to be many different kinds of Americans. There are Red Americans and Blue Americans, for instance, and White Americans and Black Americans, rich Americans and poor Americans, young Americans and old Americans, religious Americans and secular Americans, and on and on. And there no doubt are as many kinds of French, or Japanese, and so on.