It is true that there are few states which include homogenous national groups. However, there are some (Iceland and Japan for example) but there are many states which are predominantly a single "nation." And given that proposition has accepted that nations are constructed, it is possible for people to opt-into nationhood. Thus autonomous nation states can exist where groups of people agree to live with common cultural and political values. Therefore, it is not futile to attempt to accommodate a common set of political values within a state. Indeed, it is necessary to have some kind of common history, culture, practices or ethnicity often to bind groups together.1 1 Stanford Encyclopedia of Philosophy, 2010, 'Federalism,'