One final Dark Side strategy people use is to say "If we admitted scientific racism, we would have to commit genocide against these supposedly inferior populations, which we don't want to do." Never mind that this wouldn't actually happen. Think about people with Down Syndrome.
"About 92% of pregnancies in the United Kingdom and Europe with a diagnosis of Down syndrome are terminated. In the United States termination rates are around 67%" Wikiepdia
So what would be the analogous behaviour w.r.t. races?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.