An indispensible element of genocide is dehumanizing the victims.
The Nazi line was that jews were vermin, subhuman, etc... The abortionazi who put this display up is just following in the footsteps of his/her spiritual forebearers.
It's ironic, though, that the two statements ("fetus = tapeworm" and "babies are paracites") impliedly equate "fetus" with "baby"... that's one connection abortionazis usually bend over backwards to avoid.
Advantage, Chuxster. Excellent observation!