In my opinion, their wrongness is a function of their ideological approach to the world. And I mean that in a philosophical sense. Like other nationalists throughout history, they interpret the world through the lens of their own idees fixe. Ideologues like them approach the world not as empiricists but as advocates. They don’t survey the phenomena around them and derive fact-based conclusions. They survey the external world for data points that reaffirm their pre-existing views.