saucsss

The survey I mentioned. It is just a survey but still significant for academics to say this

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.695.3163&rep=rep1&type=pdf

Same idea but more thorough and in regards to international differences

http://journal.frontiersin.org/article/10.3389/fpsyg.2016.00399/full

Wu and Zheng found that human races actually have more genetic variation in the brain than other parts of the body

http://bmcevolbiol.biomedcentral.com/articles/10.1186/1471-2148-11-16

And some IQ correlated genes have unequal distribution. Not all the genes we could find obviously, needs more research... but it's unlikely for it to all balance out in the end. Nature doesnt do that

http://www.sciencedirect.com/science/article/pii/S0160289615001087

Free version: http://emilkirkegaard.dk/en/wp-content/uploads/PifferIntelligence2015.pdf

What you do with this info is up to you. But not acting on it seems silly. You dont have to support an ethnostate of course, but I do maintain an ethnostate would be great if achieved.