Syamsu
The significant thing seems to be that Darwin intermixed racism in his theory. There were I'm sure many violently racist chemists, however they did not mix their racism into their works on chemistry.
Regardless of the implications on the part of Darwin and
his social view of the world he lived in how does this tie into the choices that Hitler or Stalin or you or I for that matter use within our lifetime? This is like saying that Sun-Tsu is responsible for the actions of all wars,after his death,that made use of his book the art of war.
We can shape the way in which future generations can live out their lives by what we do today but
we cannot know in advance whether our work will be used for betterment or detriment of those generations. Knowledge has no volition of its own.As the saying goes:
"To each man is given the key to the gates of Heaven.The same key opens the gates of Hell."
How
we human beings
implement that knowledge is what determines the outcome for society but that key must be freely available to all or else we cannot be aware of its potential to help or hinder progress..Those things which we deem evil {which in reality are merely choices made by human beings and not an entity seperate from those choices}use knowledge to further themselaves.If we cannot deal with the knowledge nor properly understand its implementation by people we run a grave risk indeed.
Knowledge is impartial to the dealings of human beings.It is does not change with the passing or births of nations.It is neutral the suffering or joy it may bring.Hitler and Stalin bent and distorted the knowledge of others to their own witless ends.
A snarl, a sneer, a whip that stings. These are a few of my favorite things.