Ideological syncretism. Human worldviews are riddled with contradictions because people often haven’t done the hard work to determine if what they believe is internally consistent or a marriage of convenience.
Study the history of the American pro-life movement’s pivot from a democrat minority position to a republican majority position. These sorts of ideological alliances are fascinating.
Good book on the topic: https://www.amazon.com/Abortion-Policy-Christian-Social-Ethics/dp/1725271907 (buy local if you can!)