What she wrote was, “We don’t want the word to go out that we want to exterminate the Negro population, and the minister is the man who can straighten out (i.e., correct -ed) that idea if it ever occurs to any of our more rebellious members.”
At worst, she’s recognizing that some zealots may think that their purpose is to eliminate black people.
However, the fact that she felt she had to say that, in the context of eugenics, says something about the motives of the eugenics movement...
True. And then when you combine her radicalism with her horrors of modern Planned Parenthood policies (she DID believe abortion was murder), it sharpens just how radical PP has become.