I wrote her a mail expressing my amazement that an educated person could completely misunderstand the Theory. Perhaps I am assuming that she was educated in the first place. Golly gee, I'm surprised that someone's focusing specifically on Darwin and accusing him of writing a theory that can be used by a racist. However, I would like to point out that Darwin's theory is not the only science or technology development used by racists and that Hitler is not the only racist to use such concepts. They also used a lot of chemistry and physics in their weapons.
Explosives work through chemical reactions understood through modern scientific study.
Gas combustion in all engines works through another chemical process. Artillery shell projectiles are understood through the application of Newton's laws. Planes were developed with the application of some hydrodynamics. I really think that, if Darwin's theories need a warning label, then my copy of Frank Shu's Gas Dynamics also needs a warning label stating that racist dictators with large armies had aircraft that relied on the laws of hydrodynamics. Some of the slaughter of American Indians in the 17th, 18th and 19th centuries was done with firearms using gunpowder.