There was a reason this country came to be, with the particular political order it had. States were an important part of that vision. The author seems to object to their continued importance because they complicate central planning of the economy. Is having a centrally planned economy an important part of the American vision? It seems to me that the resistance to a centrally planned economy in America was an important protector of the liberty, the protection of which I take to be the real purpose of the government. That the states frustrate central planning is evidence of their continued importance, it seems to me.