did this concept of birth control face resistance?
Yes,  large sectors of the medical community were still resistant to birth control, birth control advocates were blacklisted by the radio industry and state and federal laws
Birth control movement in the United States
lthough clinics became more common in the late 1920s, the movement still faced significant challenges: Large sectors of the medical community were still resistant to birth control; birth control advocates were blacklisted by the radio industry; and state and federal laws – though generally not enforced – still outlawed contraception.
was birth control ever illegal in the united states Yes,  from the beginning of 1914 when did it become legal? UNANSWERABLE who opened the first birth control dispensary? Sanger partnering with Fania Mindell and Ethel Byrne
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Birth control movement in the United States [SEP] Opposition
The ABCL achieved a major victory in the trial, when the judge ruled that use of contraceptives to space births farther apart was a legitimate medical treatment that benefited the health of the mother. The trial, in which many important physicians served as witnesses for the defense, helped to unite the physicians with the birth control advocates.