RE: CTLawyer vs ResidentMoral
Slavery was legal in the United States, and the Supreme Court upheld it. It required some very unconstitutional measures to change (civil war, stripping a third of the states of their political rights, getting several percent of the population killed). Also note the the scientific consensus supported slavery, it was the religious fanatics who brought it down.
Murdering Jews was legal in Germany, based on laws constitutionally passed by a democratically elected government (n.b. the post-war trials conducted by the Allies were for killing non-Germans, which violated international law). One should note that German policy was based on American racial policy, and reflected the
scientific consensus at the time on racial and ethnic supremacy.
Abortion is no more morally reprehensible than American slavery (which was unusually reprehensible compared to Roman or Jewish law), or the mass murder of ethnic and religious minorities – if you like one, you’ll like them all.