In this post I opined that left-wing mockery of the Santorum's grieving their premature child's death is rooted in defending their pro-abortion ideology:

This nonsense is all about abortion, folks. Even though the Santorums didn't have an abortion, the "pro-choice" crowd has become so invested in defending abortion rights by not recognizing an unborn child as a human being that they find it politically necessary to mock those that do.

Well, a couple hours later James Taranto at the Wall Street Journal came to the same conclusion:

Our surmise is that pro-abortion extremism is at the very root of the mockery. Under Roe v. Wade and Planned Parenthood v. Casey, a woman 20 weeks pregnant has a pretty much unlimited legal right to abort her child. That it should be so is an almost unquestionable tenet of contemporary liberalism.

To remain comfortable while adhering to this position, it is necessary to dehumanize such children--even to devalue them totally, treating them as having less moral standing then a pet. The reason "some" mock the Santorums' mourning of their very young child is to conceal from themselves the monstrousness of their own convictions.

Indeed.