I think quite a few people fail to get it. Consider Gray and Thompson (2004):
Many scientists find the question of group differences in intelligence to be distasteful to contemplate, let alone investigate — we are among them. But it is probably more harmful to simply censor all such work because this would set a terrible precedent of allowing an extrascientific agenda to constrain objective inquiry.
… “it’s probably more harmful to simply censor all such work.” If there are are genotypic racial differences of a practically significant magnitude (say > .5 SD), do the authors believe that these differences will go unnoticed or that they are unimportant? That they can be swept under the rug or continually attributed to white iniquity? Do they think it could be possible to avoid contemplating them — in an increasingly globalized word? How myopic can one be?
May 4. Nytimes, 2011. U.N. Forecasts 10.1 Billion People by Century’s End
The population of the world, long expected to stabilize just above 9 billion in the middle of the century, will instead keep growing and may hit 10.1 billion by the year 2100, the United Nations projected in a report released Tuesday.
Growth in Africa remains so high that the population there could more than triple in this century, rising from today’s one billion to 3.6 billion, the report said — a sobering forecast for a continent already struggling to provide food and water for its people.
On the other hand, most of those in the HBDsphere fail to appreciate what their hypothesis,
if true to the extent it is true, entails.
Grey and Thompson, 2004. NEUROBIOLOGY OF INTELLIGENCE: SCIENCE AND ETHICS