Yes, Dawin plays a MAJOR role:
Eugenics had been the brainchild of Charles Darwin’s cousin Francis Galton, and was developed in response to Darwin’s theory of natural selection. It was taken up as a programme of political action by Darwin’s son Leonard. The eugenicists aimed to replace natural selection with a planned and deliberate selection. They were alarmed by the fact that the poorest in society bred faster than the middle class, forecasting that this trend would lead to a spiral of degeneration in the gene pool. Their aim was to encourage the rich to have more children and the poor to have fewer. They quickly got the science establishment on their side, creating a national panic about genetic deterioration that became as widespread and salient as fears of global warming are today. In this scenario, the poorest with their ‘defective’ genes were the bogeymen, a class that threatened to contaminate future generations.
For the Fabians, eugenics was not merely some eccentric hobby or sideline, but central to their social thinking.
Wasn’t that big hero of the American left, Margaret Sanger, into all this eugenics stuff as well? The scumbag liberals award each other ‘Margaret Sanger’ trophies for encouraging abortions, if I recall correctly.
Let's stick to the truth and not embellish it to fit your perception of reality. Francis Galton was Charles Darwin's half cousin. They shared a common grandfather, Erasmus Darwin. Charles Darwin NEVER advocated eugenics. Contrary to the posted beliefs of many, Charles Darwin did NOT invent natural selection, he merely observed and described it.