You would think that eugenics was thoroughly discredited during the twentieth century, but apparently we need a phrase that means the opposite of “throwing the baby out with the bath water”—unleashing a terrible negative upon the world in order to attain something desirable, but relatively minor and probably attainable by other means.
Are you really arguing that the theory of evolution (which is all you need for eugenics to be scientifically valid) has been "thoroughly discredited"?
Note: Nazi science teaches us how to send a rocket to the moon, and also how to drop bombs on people. You don't need to declare rocketry as "discredited" to argue against dropping bombs on people.
