I've only skimmed the Wikipedia article, but how about this?
I would rather be right; I can only hope that racism is wrong. If it were right, I (we?) would have to think long and hard about how precisely it is right, what the implications should be, and what I (we?) should do about it. Among others, there should be a debate on whether the general public should be trusted with this truth; what do you think they would do with it?
Assuming they would accept it, I can easily see the members of the groups branded as "better" looking down on the rest with condescendence and contempt, resentful feelings of entitlement from those of the "better" group that are "worse" than many members of the "worse" groups, and so on and so forth.
The Bell Curve suggests that intelligence (synergetically with wealth and power) is concentrating among an elite, a slowly-emerging "master race", if you will. Let's have a thought experiment, and assume this is true: should measures be taken against that?
The most obvious measure that comes to mind is to discourage making children among the "poor and stupid", and encourage it among the "bright and rich", so that eventually both wealth and intelligence even out from the top. However, it's not very hard to imagine this measure being extremely unpopular, and not just because of pattern-matching with the Nazis and other previous eugenic movements.
It would also require lots of secondary adjustments (the poor and stupid would need an extra-large pension to compensate for the lack of children to support them in their old age, for example).
So, yeah, it's no laughing matter, and most certainly not something to be treated lightly.
I've only skimmed the Wikipedia article, but how about this?
Try not skimming but reading. For example, to quote from your own link: "There was a long-standing 15 point or 1 SD difference between the intelligence test scores of African Americans and White Americans, though it might have narrowed slightly in the then recent years. The difference was largest on those tests, verbal or non-verbal, that best represented the general intelligence factor (g). Controlled studies of the way the tests were formulated and administered had shown that this did no...
Now, it is said we all here pride ourselves on our intelligence, rationality, and moral sense. It is also said, however, that we are a fiercely independent bunch, and that we can let this pride of ours get the better of us. There have also been comments that the live communities that appear at meetups provide much more positive interactions than what goes on on this site's discussions; this might merit further investigation.
My point is; we've done a lot of research on how to do proper ethical and metaethical calculations, and on how to achieve self-empowerment and deal with our own akrasia, which is awesome. We've also done some work on matters of gender equality, which is very positive as well. But I haven't seen us do anything about the basic details of human interaction, what one would call "politeness" and "basic human decency". And I think it might be useful if we started tackling these, for our own sakes, that of those who surround us, and that of easing our mission along, which is, as I understand it so far, to save the world (from existential risk (at the hands of (unfriendly and self-modifying) artificial intelligence))).
What inspired me to propose this post was a video I just saw from Hank Green of the famed and fabled vlogbrothers. I hold these two individuals in very high esteem, and I would expect many here to share my feelings about them, on account of their values and sensibilities largely overlapping with ours; namely the sense that intelligence, knowledge and curiosity are awesome, and that intellectuals ought to use their power to help improve themselves and the world around them.
Here it is; I hope you enjoy it