True, but it does sound like Margaret Sanger was more in the camp of using Eugenics to prevent the disabled from reproducing and to force smaller families no mater what their ethnicity to prevent over population vs the camp that wanted to use eugenics as a racial purifier. And ya she did have contacts with the KKK but then again back then it was considered a more legitimate movement and she also had several contacts who were major players in the black rights movements as well so it's hard to say how much she supported either side though that.
It also sounds like PPH itself has been working to distance itself from her due to her eugenics legacy. And not in the "lets pretend she never exsisted" kinda way but actually being the ones directly responsible for a lot of the reports talking about her roll in it pettition for street names and what not named after her to be changed.