You realize this isn't much of an argument, don't you?That's because I'm no longer arguing with you. You haven't pieced together much that's cogent enough for me to debate and your conclusions are nearly as despicable as they are preposterous. You're trying to argue that black people are biologically less intelligent than whites and other races, a view controversial enough that the burden of proof lies with you. Let's review how you've set out to prove it.
You tried to discredit Gladwell's article with fuzzy math and attacking the strawman; I exposed it. You failed.
Then you tried citing other people's research into IQ to support your views. Unfortunately there's no serious research that supports your world view, so you were left citing "studies" that have been widely discredited and debunked. (For example, "IQ and the Wealth of Nations" literally concludes that most of Africa is functionally retarded.) Reductio ad absurdum, you fail.
Then you gave up citing research into IQ and g, and started citing cultural phenomena that clearly are not relevant to the biological innateness topic at hand. Even the cultural phenomena you bring up aren't particularly compelling. (For example, you're comparing the plight of cultures conquered by the Ottoman empire that fell in the 1600's to that of African nations occupied and conquered by the British empire, which didn't leave in many cases until the late 1960's and, in the case of Zimbabwe, until 1980.) Failed again.
Finally, you got frustrated and started blurting out that it's "trivial" to conclude that blacks just aren't intelligent as other races, figuring that a few upmods on YC.News will make you seem right without proof. Fail.
I'm sure you're going to find another flawed study funded by known white supremacy groups to justify your beliefs. Or maybe you'll start citing phrenology or Nordic theory. I don't know what you'll pull out next, but I can assure you that I won't care, unless it's got some legitimate scientific basis.
You're making a fool of yourself.