I always like to read contrarian articles, in the hope that the analysis will be interesting. Sadly, there's not much of interest here as the definition of nationalism is inadequate and the psychological elements mostly ignored. In reality, Einstein was correct: nationalism/patriotism is an infantile mentality and the many harms greatly outweigh the very few vaguely positive benefits. As for the idea that nationalism defeated the Axis powers, this is actually very funny and could be developed into a lovely satirical piece.