“The modern situation permits and demands a new sexual morality: the old taboos served some real purpose in helping to preserve the species, but contraceptives have modified this and we can now abandon many of the taboos. For of course sexual desire, being instinctive, is to be gratified whenever it does not conflict with the preservation of the species. It looks, in fact, as if an ethics based on instinct will give the Innovator all he wants and nothing that he does not want.”
I can’t say this enough times, but the idea of birth control was very recently only a fringe view. Any mainstream church (not just fundamentalists) took the position that birth control was an evil to be shunned. It was Sanger and others who mainstreamed birth control.