Margaret Sanger promoted birth control for women- at a time when Conservatives believed that birth control should be forbidden as it promoted 'loose morals' and of course that contraception interfered with God's plan for women to have 12 or 15 children. Conservatives believed this so strongly that they passed laws forbidding not only the sale of contraceptives- but even literature which described what they were and how to use contraceptives.
You want to have your own little debate about abortion- go for it- but Margaret Sanger's mission was to allow women to control their own reproduction- primarily through contraception. And Conservatives hate her for that.
I think you’re naïve about Sanger. I could share numerous quotes of hers that are absolutely cringe-worthy. People like her promote birth control not out of the goodness of their hearts, but because they don’t want certain types of people to reproduce.
She’s a eugenicist, which in my view is evil, elitist... trying to play God. There’s a lot to be said here, but I don’t have a lot of time right now, so I will try to get back to this later.