The US government reduces the 6000 cultures in the world to 5. We count people according to what continent they came from, or which one their parents came from. We've imposed labels on each other, we're sorting ourselves for some kind of global comparison. And then we're shocked when someone takes aim at someone from another continent. Apparently, this is a biological fact.
Low status is accompanied by low seratonin levels.
Christian white male nationalism is part of the political platform of some politicians. It also works with two out of three-there is white Christian nationalism, shared by men and women. There is male Christian nationalism, seen in the Promise Keepers, among others. We have seen varieties of nationalism in the Balkans recently, in Bosnia and Kosovo. We have seen what happens when people turn against their neighbors.