I'm not sure that means anything. Theories exist to explain a certain portion of the physical world. Whether or not such explanations can be used for practical applications isn't really relevant to the question of whether or not the theory is correct.
However, I am acutely aware of the death and destruction brought about by adherents to Darwinian eugenics, this destruction is ongoing and the death toll is at least ONE MILLION PEOPLE PER WEEK.
Whatever are you talking about?
Then why is the teaching of it sacrosanct?
Whatever are you talking about?
Are you unaware of Darwinian eugenics?