I hear that 30 years ago it was easy to adopt a Jewish child because the Modern Orthodox rarely had abortions. You just had to call a Modern Orthodox rabbi or two and they’d put you in touch with some unmarried teenage girl who wanted to give up her baby for adoption. No longer. Supposedly the MO rabbis now say that they aren’t even asked by their congregants whether it is permitted to have abortions, the MO girls just go ahead and have them, and thus it is much harder to find a Jewish child to adopt.
Two Modern Orthodox rabbis tell me the above is not true, that Modern Orthodox girls do not get pregnant outside of marriage.