If this is wrong, go ahead and correct me, but if it's true, then he IS racist, by definition, since this view is not supported by genetic science.
Well, ok, you're defining in the sense of concrete - if I killed someone, then I'm a killer by definition, even if it was completely unintended ( like I accidentally bumped into someone and they fell off the roof of a building - so I would disagree and blame gravity as the killer, not me ). By definition, someone positing differences in race beyond skin pigmentation is racist. But what we really mean by racist is treating/judging people differently based on pigmentation. Someone researching differences in race is not racism. Harris and Murray are simply incorrect in their conclusions ( well, really everything imho - even their thought to embark on such research ) and are not "racists" in the regard they're coming to the table with ill intent ( well, they could be, of course, I can't read their minds - but from these taped discussions, I simply find them lost, not "bad" people ).
I think the phenomena of IQ has derailed polite society for far too long now. It's a distraction at all levels of consideration. What makes a person outnumbers the number of atoms that make up the planet Earth, so this "IQ" is an odd preoccupation as it is a single thread of focus from the exa-trillion threads that make the human consciousness. So much about our intellect is still mystery, we're not even scratching the surface, barely voyeurs really. Simplistically put, we can be "smarter" today than tomorrow and yet smarter still the next day than today. IQ is combobulation (yes, I know, not a word, but you get me ) ... like a focus on the differences in traffic intersections. I simply see 2 people who went to hell with themselves over the irrelevant and of course anything they would conclude would be false - so they needlessly exposed themselves to ridicule as anyone will indulging in the exercise of IQ. Doesn't make them racists/bad actors ( but they could be ), but simply misguided. They're in good company, quite the ruckus over IQ. I find those suffering the demands of determining the number of possible shades of the color green to be on a more worthwhile path.