Historically, the citizens of city states resisted the amalgamation of their city states into nation states, but advancements in society and technology forced the nation onto them. Today, the same changes are now pushing the world towards world federation, and so the nationalists of today resist just as the partisans of the city states resisted in the past. As a result, while nationalists would have been perceived as progressives in their day, they are now perceived as reactionaries today. Might this explain the tension we are witnessing today?