@2a48eef0 The many kingdoms and empires of europe and the middle east all faired for quite a long time, freely mixing territories and populations. Racist nationalism arose only because the bourgeois found it useful to conduct wars against each other 

 @75e7cd9e 

That's some serious historical revisionism disproven by genetic data in Europe.

The middle east is mixed race, and it has caused no end of conflict apparently.