Congratulations: you have completely missed the point of what I wrote.

1. It is possible to interpret everything I said in such a way that it doesn't insult you at all: "I suppose you want us to think you are being honest (which is fair enough since you are being). It's interesting the way white supremacists treat others with contempt (though of course this is just an irrelevant aside and not a comment on you). Perhaps someone less stupid (than the white supremacists) would write more sensible things (than they do)."

2. Of course that would be a rather strained interpretation of what I wrote. That's because the insulting bits of it are implicit, not explicit: the only problem with the non-insulting interpretation is that it doesn't make any sense as a whole.

3. Exactly the same applies to your comments. Sure, you didn't say that black people are less intelligent than white people; you merely said that they have smaller brains and OH NOES some of them are moving to the USA, immediately after claiming that an unprecedentedly-severe "idiocracy-like event" is happening right now. Sure, you didn't say that one race is inferior to another; you just said a whole lot of other things that don't make much sense unless they are.

4. That (points 1-3 above) was the whole point of my paragraph to which you took such exception, as the paragraph that followed was intended to make clear. I'm sorry (though not very) that you were offended by it; I thought that was a risk worth taking in order to make sure you understood how it's possible for something to be insulting even when it can be decomposed into fragments that aren't unambiguously insulting.

5. I am not, as it happens, angry, no matter how much anger on my part would suit your preferred narrative about foaming-at-the-mouth politically-correct liberals. Neither does my opinion that your claim not to be being racist is pure bullshit have anything to do with "political correctness". But of course there's little use in my saying that, since you "know" what I actually think and why -- and I strongly suspect that you had decided firmly ahead of time that any possible objection to what you wrote would be a matter of being angry about a lack of "political correctness".

6. Being a white supremacist is perfectly compatible with thinking that Asian people are more intelligent than white people. (Although, as it happens, I was not in fact accusing you of being a white supremacist; see point 4 above.)

7. I have made no objection whatever to what Wikipedia has to say about brain size.

8. Your points? You've carefully left the most important ones implicit. But here's one. You say that "mass immigration" will lead to rapidly shrinking brain sizes in the US and Europe, because (supposedly) black people have smaller brains and (implicitly claimed) the causes of this are genetic. But there is not in fact a great deal of immigration of black people to the US, and black immigrants to the US turn out to be (as a population) extremely intelligent and well educated. For instance, see http://en.wikipedia.org/wiki/African_immigration_to_the_Unit... which indicates that about half of all African immigrants to the US have an undergraduate degree and about 1/5 have graduate degrees, both figures considerably higher than those for the US population as a whole. So, with fewer than a million African immigrants in the US in total (so presumably at most, say, 50k/year), and these being apparently smarter on average than the population they're migrating into, we're supposed to be worried about a drastic loss of brain size in the US population as a result? Pull the other one, it's got bells on. (There is more migration from Africa to Europe than to the US, unsurprisingly; statistics seem harder to come by.)