Sanger was a eugenicist. She sought to eliminate the unfit by reducing how much they reproduce. Contraception and abortion were some of the tools for that. Planned Parenthood says they don't live up to their founder's goals, but they do target minority neighborhoods, so they are behaving in line with her goals, even though they say that are not seeking to further her goals. (Can you imagine if the KKK denounced their racist origins, and started providing assistance to mainly white communities? Would you give them the benefit of the doubt?)
Regardless, the point is not necessarily that PP is racist today. I would just say that if the wall is racist, then Planned Parenthood is definitely racist. Maybe neither is racist, but if one is, then both are, and PP is clearly more so.
[Edited quite a few times, because I didn't want to be putting words in Cole's mouth. Trying to make my points, my points. Also, I had trouble adding an image to this post about Margaret Sanger's book "Woman and the New Race." and her letters of concern that the Negros will think they are trying to exterminate them. The stuff is out there if you want to google for it.]