Proof niggers are dumb (IQ, brain size etc)

Oriental populations in East Asia and North America typically have mean IQs falling between 101 to 111. White populations in Europe, South Africa, Australasia, and North America have mean IQs of from 85 to 115, with an overall mean of 100. Black populations living south of the Sahara, in the Caribbean, in Britain, and in North America, average IQs of from 70 to 90.

Especially contentious was Lynn's calculation of a mean IQ of only 70 for Black Africans living south of the Sahara. Many reviewers have expressed skepticism about such a low IQ, holding it impossible that, by European standards, 50 percent of Black Africa is 'mentally retarded'. But a mean African IQ of 70 has been confirmed in three studies since Lynn's review, each of which used Raven's Progressive Matrices, a test regarded as an excellent measure of the non-verbal component of general intelligence and one not bound by culturally specific information.

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You're making this too easy and you're making yourself out to be quite the faggot.
Actually, you are making it too easy. You diverted from the race debate (not that I expect proper debates from leftists, mind you), and are now arguing about other things. Policy is irrelevant to science, and should not taint it like Marxists did.

What I meant was, what does all that shit about genetics and blacks being inferior have to do with Marxism?
The race denial movement is rooted in Marxism/neo-Marxism, and its constant appeals to ignorance: There was no definitive information about race, even though it was pretty much established, so they spread unfounded doubt on it. It's the same modus operandi as Creationists. 'We haven't discovered everything in the world yet, so we can't be sure that we aren't wrong.' This is utterly disgusting, frivolous and retarded.
I wanted to give insight on the race denial movement, but then you carried on about the three posts you copy-pasted from another thread (link it by the way). Now you're going to have to deal with my posts first.
As for the reason why Marxists do it, it's part of their dogma:
"The history of all hitherto existing society is the history of class struggles."
So basically their religion tells them to deny everything else as a cause, and blame 'socio-economic factors' and the White Conspiracy for Black failure.
Am I to believe that the opposite of Marxism is a policy of natural racial superiority by whites?
Am I to believe that Marxists can debate without straw man?
How will calling black people niggers and shutting them out of society due to their assumed and percieved "natural inferiority" defeat Marxism?
Guess not. Straw man, fear tactics etc.

tl;dr You still failed to debate my posts pertaining to IQ and genetics. Stop your diversions and prove them wrong with your sound, superior leftist logic.