>>9991341Nationalities are relevant and serve as proxies for ethnicity, but it's not that simple. The Balkans have two opposite poles of people, those who cluster with Central/Eastern Europeans and have been civilized on one hand, and strange brownoid 90 IQoids who were not properly civilized (genetically or culturally) on the other hand. It's a spectrum and there are people in-between those poles due to mixing. Different countries have different frequencies of these people (Slovenia being the "whitest", for example). That being said, I will consider a Bosnian that clusters with me genetically to be more kin to me than some brownoid "Croat", to do otherwise would basically be civic nationalism, which I am opposed to. Sometimes nationality correlates very well with ethnicity, but the Balkans are a bit more complicated than that.