Yes it does, you can replace the term 'race' with 'ethnic' and claim its a different point.
It also doesn't "debunks the concept of race as something that can be clearly defined", it flat out states that race is a social construct not a genetic factor.
Numerous studies have shown that as much genetic difference exists within any given population/ethnic grouping as across it.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1893020/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4687076/
http://sitn.hms.harvard.edu/flash/2017/science-genetics-reshaping-race-debate-21st-century/
https://rosenberglab.stanford.edu/supplements/popstructSupp.pdf
http://sitn.hms.harvard.edu/flash/2017/science-genetics-reshaping-race-debate-21st-century/
One case study even used Watson to debunk his own claim:
View attachment 792835
http://sitn.hms.harvard.edu/flash/2017/science-genetics-reshaping-race-debate-21st-century/
"It's a concept we think is too crude to provide useful information, it's a concept that has social meaning that interferes in the scientific understanding of human genetic diversity and it's a concept that we are not the first to call upon moving away from," said Michael Yudell, a professor of public health at Drexel University in Philadelphia.
Yudell said that modern
genetics research is operating in a paradox, which is that race is understood to be a useful tool to elucidate human genetic diversity, but on the other hand, race is also understood to be a poorly defined marker of that diversity and an imprecise proxy for the relationship between ancestry and genetics.
"Essentially, I could not agree more with the authors," said Svante Pääbo, a biologist and director of the Max Planck Institute for Evolutionary Anthropology in Germany, who worked on the Neanderthal genome but was not involved with the new paper.
"What the study of complete genomes from different parts of the world has shown is that even between Africa and Europe, for example, there is not a single absolute genetic difference, meaning no single variant where all Africans have one variant and all Europeans another one, even when recent migration is disregarded," Pääbo told Live Science. "It is all a question of differences in how frequent different variants are on different continents and in different regions."
Ah 'The Bell Curve'
Lets list the inherent issues that exist with it:
You also seem to have misinterpreted the last part of
@Johnnypenso quote from the
APA task force report on the book, which clearly rejects the race based link:
"As to the cause of the mean Black–White group difference, however, the Task Force concluded: “
There is certainly no support for a genetic interpretation""
That rejection is based on evidence and repeated peer review, now even if it wasn't that doesn't (scientifically) support inserting anything you like into it.
Its also missleading to suggest that science has avoided the area in terms of research and debate, the evidence exists by the boat-load to show that its been discussed and researched massively. Its a line rolled out by the far-right and white supremacists (that has unfortunately gained ground in the mainstream) to try and support the debunked while ignoring the massive body of peer-reviewed evidence and discussion debunking the link.
So, no 'The Bell Curve' isn't evidence to support a link between race and IQ at all, and to interpret as such is to ignore a massive body of evidence that has been presented in peer review, to ignore the inherent flaws in the basic pillars its based upon (the main one being to assume the data is sound to start with and that IQ can be measured accurately via a single test) and to ignore the limitations te work itself put on the link (and have been further refuted - to the point that they are simply not correct).
In short you have to cheery pick from an already massively flawed source, created using flawed data and concepts, and ignore every single piece of peer review in order to draw a conclusion that 'The Bell Curve' supports such a link.
In short, genetic traits and abnormalities can influence intelligence (however how to accurately measure intelligence consistently is itself open to debate) Down's Syndrome is one such example. However genetic variation is so vast, both within population/ethnic groups as well as across them, that it isn't and can't be linked to one of the seven social construct groups described as 'race' in any unique way.