Lemmings
Given the track record of legal abortion here in the US and our export of death abroad, it's the Republicans who have all of these individual Deathist Utopians beat, hands down.
After all, abortion is a GOP policy.
"Abortion is Vital to the Solution" ... a Key Point from Kissinger's NSSM-200
As are eugenics, population control, the rabid environmentalism that places the purely material before man and the kicking open of doors to "rights" to predetermine the sex of one's Planned children:
Recommendations of the Task Force on Earth Resources and Population (George H. Bush, Chairman)
Not to mention "therapeutic" cloning and the enriching of the "private corporations" who provided our pro-life President his "already been killed" human lives for his utilitarian research which nailed open the most profitable and critical window of Human non-personhood where the standardization, manufacture, and wholesale destruction and prevention of human life is concerned:
78 Lives, er, Lines and Counting ... Latest Additions to the NIH's Stem Cell Registry
U.S. Rule on Stem Cell Studies Lets Researchers Use New Lines