More than "reductionist" I'd call it naive. It's the same mental short circuit that's behind the usual "this one weird trick" and "doctors hate her": the idea,

More than "reductionist" I'd call it naive. It's the same mental short circuit that's behind the usual "this one weird trick" and "doctors hate her": the idea, or dream, that we can find a single culprit- and therefore a single solution- for all our problems. One time it's fat you shouldn't eat, then it switches to sugars, then you should eat proteins, etc.