the meaning of a sentence
The passage below is from ‘the Blank Slate’ by Steven Pinker.
http://evolbiol.ru/blankslate/blankslate.htmThe reason for the survival of these recurrent determinist theories is that they consistently tend to provide a genetic justification of the status quo and of existing privileges for certain groups according to class, race, or sex.... These theories provided an important basis for the enactment of sterilization laws and restrictive immigration laws by the United States between 1910 and 1930 and also for the eugenics policies which led to the establishment of gas chambers in Nazi Germany. ... What Wilson's book illustrates to us is the enormous difficulty in separating out not only the effects of environment (e.g., cultural transmission) but also the personal and social class prejudices of the researcher. Wilson joins the long parade of biological determinists whose work has served to buttress the institutions of their society by exonerating them from responsibility for social problems.I'd like to ask a question regarding the underlined sentence. To me, it is difficult to precisely understand this passage. So I paraphrased it as follows:
What Wilson's book illustrates to us is it is severely difficult to separate out the effects of environment and the personal and social class prejudices of the researcher.Do you think my sentence makes sense?
Regards.