You're saying something I don't think you intend - on a societal level America is being burdened with healthcare costs that are spiraling out of control... the failed society is the one that has failed to reasonably regulate food and is now burdened with extreme obesity epidemics and nutritional deficiencies.

It's easy to say "Just eat better" when you're wealthy but the working poor in America don't have any great options outside of switching to base staple foods like rice and beans... and that's difficult to do when good seeming fast foods are offered in abundance.

On a societal level "evolution" seems to be pretty clearly indicating that America was wrong on this one.