You are confused. Your reasoning is invalid. You refuse to learn the basics, or even read your own sources in the matter (the example of height is right in front of you) and so you post error and foolishness in defense of incompetent governance.
The data shows that individual IQ's are 50 - 85% based on an individuals genetics. Further, different populations of humans, for example, E. Asian Chinese, have different IQ levels. E. Asians for example, score higher than "White People" on the spatial reasoning subsection of the IQ test.
I'm not sure what you find so hard to understand here? Is it the concept of adding up rows of individual IQ scores and dividing by the sample number? That's called an 'average' iceaura, it's probably listed in one of your fansy-pantsy Stats books. And get this, when you have a normal distribution of individual samples, you can compare means using a single factor ANOVA.
GASP!
Guess what you'll find? The average for E. Asian scores on IQ tests, are higher than White People.
Some of the gap between black and white median IQ score in the US is from the effects of white racism, of course.
Prove it.
A few of the mechanisms: stereotype threat during testing; lead and other toxin exposure during gestation and childhood; premature birth and deficient linguistic development and other maternally mediated factors, diet and stress and trauma and schooling deficits during childhood; and so forth. All this is obvious, and your denial of it is flagrant.
You've yet to provide any good controlled evidence. So, far, there is nothing to 'deny'.
Do you have ANY good data? Anything?
That African black people often lead short lives of great poverty and poor health, is due to White People? Seems arguable - we know that they were wealthier and militarily stronger before the Enslavements and European colonizations, it's at least possible they were longer lived and healthier as well. But other factors argue otherwise - the greater prevalence of disease, the absence of draft animal and then machine powered tillage, the poorer soil and more difficult circumstances (including comparatively barren coastal waters), the long established patterns of warfare, etc. All the factors enumerated in "Guns, Germs, and Steel".
No, it doesn't seem arguable. Let me guess? White Lizard People also stole Africa's topsoil?
Well, we all know you're not going to hold Europeans from the 1600s to the same standards as Europeans of 2017. So, when African tribes would sell other Africans as slaves they'd sell them to other Africans (and still do by the way); Arabs (up until the 1970s) and Europeans. Arabs and Africans had been buying African Slaves (and de-sexing them) for thousands and thousands and thousands of years. Who do you suppose treated their human Slaves better? Other African tribes? Arab Muslims? Or European Christians? If you were being sold, which would you like to be owned by? Because Slavery was ended by White People. Oh, and historically speaking. African Slaves were often treated much better than White Indentured servants (who could be worked to death and were cheap, comparably).
And just for the record, the USA practiced slavery for
LESS than a single lifetime. White Christians ended Slavery. A lot of White People killed a lot of other White People to end Slavery.
Well, for awhile. Then the Progressive Socialists came up with a new form of Slavery, income-tax backed fiat currency T-
BONDS.
Which YOU wholeheartedly support!
LOL
Talk about irony. Wanting to own another person's labor is a sickeness. I wonder if it's genetic? I mean, it seems nearly impossible to get past. Just listen B.Sanders crap on about FREE healthcare and FREE K-14, of course, the cost is a few generations of Americans prosperity (which we're paying for right now, but whatever.... FREE shit!)
Anyway, you've yet to provide any evidence for your assertions. Whereas there's ample evidence showing White (Americans in particularly) are overwhelmingly not racist. What they do discriminate against is IQ. Which is why there's more poor Whites than Blacks. There's simply more lower IQ White People, than Black People. Which also explains why Yellow People make more than White People - on average, they have a higher IQ.
What YOU see as racism, is not in fact racism. What you're seeing are the effects of Progressive Socialism in the form of Government interfering in the markets via Government Schools and regulatory capture. If you compare the IQ of rent-seekers versus those locked out of the markets due to the licencing (as an example); then you will see a lot of high IQ people (with Yellow People on the top) making a lot of money as rent-seekers and over on the other side you will see a seething mass of low IQ people (mostly White People) not making much money. This is what YOU argue for all the time iceaura. More Progressive Socialism. Just how the hell do you think GiverMint Socialists figure out who gets to do what in your Progressive Paradise iceaura? Oh yes, that's right, when it's not Magic Thinking, then it's.... Assessments! The ACT, SAT, MCAT, LSAT, etc... Effectively locking out low IQ people. Who are left working in hyper-regulated low end jobs.
AND of course highly paid high IQ virtue signalling twats don't want to live in even a tiny bit of a polluted country - so they outsource all that nasty work to China and other SE Asian countries via EPA hyper-regulation. Sure, the Earth ends up with MORE pollution, but, whatever, I want my Apple Ipad..... Leaving no work for low IQ people.
Progressive Socialists / Marxists do love their Blank Slate bullsh*t. But it's just that, bullsh*t. And you know what happens to bullsh*t theories when the Scientific Method sinks its teeth into it? It gets torn to shreds. Which is why Socialists are now attempting to ban Science and free-speech. They know it's only a matter of time before the rest of their defunct theories are flushed down the toilet with their Race Theory "White People" did it b.s.
It's only a matter of time before IQ can be accurately and precisely measured directly using advanced MRI:
Neural, electrophysiological and anatomical basis of brain-network variability and its characteristic changes in mental disorders.
Soon, together with genetic tests and other measurements, we will see quite clearly that it is in face NOT 'because White', but actually 'because genes'.