Those whose self-image is bolstered by maintaining a position of no incremental change....allowing a million babies to be killed each year until somehow it just all stops instantly, at once....will never admit they are mistaken in even the tiniest degree.
I think we have pursued incremental change, with court cases, making late term abortions very difficult, defunding, the Hyde Amendment, waiting periods, parental consent, regulating abortuaries to death, giving conscience clauses to health professionals, etc.
Abortions went down 5% last year. There is a reason for that.
The notion of legislative "incremental change" is ludicrous, because the whole abortion fiasco arose and continues in the Federal Court system. Short of a cataclysmic change in the Congress and the growth of some very large brass gonads to remove any jurisdiction over abortion from the purview of the Federal courts (a power the Constitution SPECIFICALLY gives the Congress....though it has never been used), ANY legislative approach, incremental or not, is simply doomed.
What the Pro-Life community is doing (successfully) is fostering MORAL incremental change (which was the REAL first step in getting rid of slavery.....convincing a sufficiently large number of people that slavery was morally wrong). The number of people who support abortion has decreased regularly.