Prolifers are speciesist.
Speciesism
Abortion supporters like Peter Singer classify a view that places a higher value on human life as opposed to animal life as "speciesist," because, he argues, that it unfairly discriminates against non-human persons.
He writes:
...those I would call ‘speciesists’ give greater weight to the interests of members of their own species when there is a clash between their interests and the interests of those of other species.
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To give preference to the life of a being simply because it is a member of our species would put us in the same position as racists who give preference to those who are members of their race.1
Of course, the problem with racism is that it discriminates against one human compared to another based on skin colour, an arbitrary trait. But Singer’s point is that discriminating against non-humans is just as arbitrary.
Singer takes his argument further, however. He states that individuals should be valued not by their existence, but instead by their function. That is why he is willing to concede that the pre-born are biological human beings but not persons. He says,
The fetus, the grossly retarded ‘human vegetable’, even the newborn infant—all are indisputably members of the species homo sapiens, but none are self-aware, have a sense of future, or the capacity to relate to others.
Pro-lifers then, according to Singer, are speciesist because they fight for the right to life for human ‘non-persons’ but not for animals that ‘are’ persons.
Speciesism