This column is trying to understand the current fad among Democratic state officeholders for enabling abortions right up until the moment of birth. Since the abortion market generally has been in historic decline and the demand for such procedures at the end of a pregnancy is extremely small, it’s as if politicos like New York Gov. Andrew Cuomo are determined to demonstrate a sort of ideological zealotry. Perhaps somewhere there is a misguided Republican seeking to affirm his love for the 2nd Amendment by supporting the purchase of bazookas without a background check, but it would hardly represent a strategy for winning...