Man. What is it with this wave of nationalistic zealotry that seems to be sweeping most of the world? Has it just been long enough since World War 2 that it's already time to re-learn these lessons?
It is very hard to be antagonistic in such circumstances - what is there to fight over, really?
It is possible that resources are getting scarce again and old battle lines are rediscovered as nations, classes and tribes restart old squabbles. There is less cheap oil per capita, cities are getting cramped and the radical change technology bought in the 90s and 2000s is slowing down so it isn't obvious that there are easy opportunities still opening up on that front.