Total non-sequitur. You are misreading Diamond in comparing "native" alcohol and viruses/bacteria exposure to the massive chemical load all humans in "developed" nations carry. Are you trying to say that people who APPARENTLY can tolerate such chemical loads are "superior", like you posit Europeans were compared to "natives"?
So explain the skyrocketing rates of diabetes, cancers, obesity and respiratory/circulatory diseases in "developed" populations vs those with more traditional local diets and farming practices.
All humans would be healthier with out the chemical load we carry, mostly of chemicals not even invented before the mid-1800's. Certainly there were other factors which made life for the masses "shorter, brutish", but ubiquitous disease due to food-borne ingestion of hormones, antibiotics, herbicides and insecticides, as well as 'additives" like MSG are a largely ignored modern phenomenon. Layering unproven GMO "foods" on top of this is a massive experiment using the entire human race and the ecosystem we exist in at risk of unintended consequences.
Before this crap was EVER released on the public, the CEO's, scientists and politicians who think this is an unmitigated good should be the guinea pigs. And their families, for at least 4 generations to see if this is truly safe. My guess is, most of the elite drivers of this crap-tech eat organic.