[GodGunsGuts]

And when it came to large, poor families, she apparently advocated post-natal abortion (read: murder) to keep their numbers within the limits set by her fellow evo-fanatical/ eugenicist coreligionists.

[Lorianne]

She did not advocate that. In fact, she expressly advocated for contraception to eradicate that practice.

Sanger was opposed to abortion and infaticide, which she claimed were widely practiced in secret. She used the fact that those two practices were widely practiced (according to her) to advocate for contraception.