>>1840434not mongoloid, Eurasia is a big place, there's various genetic components that can at the same time sort of "push" in the same direction even if they are from different sources
>>1840436different samples equals different proportions
including strongly divergent east populations is going to lead to a different picture, albeit with similarities
notice for instance how Iranians are still more to the right compared to Sardinians, and not because they have east asian ancestry, it's just that they have something else in common with other population to the right that pushes them in that direction, while Sardinians have such west Eurasian specific ancestry that in all those PCAs they are almost always in the opposite direction of every population east of Europe(looking at it in a west-east cline)
pic related is probably a good explanation
