Will Saletan linked this just-published analysis by Razib Khan. Razib has been researching and thinking carefully about the sources of anti-GMO sentiments.
…GMO has not become culturally polarizing. Yet. Most peoples’ opinions are inchoate and instinctive. I believe they derive from folk biological intuitions about essences. Ultimately it’s about the fact that people don’t understand genes in any prosaic sense, but they think that they’re somehow magically involved in the nexus of who we are in a deep and fundamental sense. That’s why the translocation of fish genes into tomato is so uncomfortable for people; they imagine that the essence of the fish is somehow being mixed with the essence of the tomato, and that just feels wrong. Genophobia of this sort is comprehensible in a cognitive anthropological framework. Just as we are likely wired for Creationism, I think we’re wired for being very skeptical of the concept of GMO, because of the implicit connotations of muddling categories which we view was fundamental. And, just like Creationism, we can overcome these deep intuitions. Much of natural science in the modern world consists of overcoming and updating of deep intuitions.
I am mildly optimistic that this will not happen with GMO, and that is because scientists are anti-anti-GMO, and, politically liberal. It seems very likely that a GMO food labeling measure will pass in the near future. And I believe that this will galvanize a backlash among scientists on the whole. Something similar happens on the Right with Creationism. Whenever the movement actually scores a victory, elite Republicans, who invariably accept the science of evolutionary biology, become alarmed and roll back gains made by Creationists. Unlike evolution, GMO are not just abstractions in a laboratory. When GMO becomes pervasive enough, or at least the knowledge of how pervasive they are becomes more common, then the public will likely make peace with their reservations, just as they have with in vitro fertilization.