I instinctively like these arguments but I think we should be careful about indulging them. A big part of the human animals biological advantage is just how damn versatile it is. The range of diets, climates, and lifestyles which we tolerate is vast, compared to other animals. Different permutations may produce different outcomes in terms of happiness, health/longevity, and so on, but I doubt that you could find some particular permutation that is "the right one."

There is one version of this idea that I like though, which is that I doubt that we're built for 8+ hours a day of intense abstract reasoning, which seems to be what the modern information economy demands of those aspiring to a middle class or better existence. The vast bulk of humanity did not earn their daily bread this way for most of human history, so I don't think our brains are adapted for "abstract reasoning above all else."