[annalex]

secular law allows abortion

Right, but canon 1090 specifically mentions "crime" so it is important to ask, whose definition of a crime.

I ask this because I think the time is approaching when the Church will have to recognize no civil law and instead rely entirely on her own internal jurisprudence. That is because the secular law is departing from the natural law not just on one issue that one might call exceptional, but more and more presents a coherent in its own way secular outlook incompatible with Christianity in toto.

[RobbyS]

Since John Austin's time, legal positivism has increasingly taken over American law. That explains, among other things, the absolute mania that legislatures have for making "new law." It gets to the point that the legal code as a whole lacks any natural basis except the will of legislators, so that jurists must constantly intervene to hold it all together.