Human nature is our species ability to transform nature. A cat, for example, is only doing hunting for immediate consumption. A pet cat is even more limited, just a furrring biological shell, he does not hunt.
So when a human is limited in all his potentials, thinking, planning, building, etc to something like a tool on the market, optimized for some task, when human relations limited to objects of consumption... this will reduce human to just one sided being.
May be this optimization was once necessary some time ago, since labor productivity was low and this high division of labor allowed optimized production, to feed everyone.
At the moment, the labor productivity is so high, that only 10-20% working on something necessary for living. But all work is still done as this optimized instrumental labor, as life depends on it. This is not required anymore.
The solution is obvious.. build more not as an optimized one sided "worker", but as an universal human being, as a free time activity.
Which politically means that the work day should be reduced.. and this is not easy to implement. But if you really want a social change, this is the way to go.