Does banning abortion actually reduce abortions? The answer seems obvious. Of course it does. But an undercurrent of left-leaning argument suggests otherwise, that banning abortions wonÂt reduce abortions, or at least not very much.The argument comes up a lot; it lurks in the background anytime a progressive says something like, ÂIf you were really pro-life, you would support more welfare for families. The implicit argument here is that banning abortion wonÂt save lives but that supporting progressive priorities will, or at least that progressive policies will save more lives.Perhaps the most recent incarnation of this idea is from David...