I'm interested in that last point of yours - if it is indeed, murder, why don't people want to punish it that way? It seems inconsistent.
That is certainly an issue that the pro-life movement will need to eventually deal with, especially if, as I anticipate will soon be the case, Roe Vs Wade is ultimately overruled. When banning abortion is no longer a theoretical question, pro-lifers will need to logically explain why child murderers should be automatically excused from punishment under the law.