I have no idea what your attitude is about.
I do not agree with Sanger’s point of view but it does the pro-Life side favor to make up falshoods about a person. She was bad enough without making up things about her that she never supported.
Your first quote is out of context where she is speaking in the voice of poor immigrant families who had espoused that view to her. She did not agree with it, she was advocating for contraception to avoid that sentiment being carried out.
Is this “bad enough”? You are not looking at her full biography closely enough.
For what purpose?
“Birth control appeals to the advanced radical because it is calculated to undermine the authority of the Christian churches. I look forward to seeing humanity free someday of the tyranny of Christianity no less than Capitalism.”- Margaret Sanger