Conservatives want live babies for the same reason anyone wants live babies... because babies are pink and squishy and warm and innocent and precious. Conservatives want live babies because it's really no fun loving dead babies. They want live babies because they were once babies too. They were protected and allowed to remain alive and, oddly enough, want to extend that to other growing persons, particularly vulnerable, faultless, totally dependent babies.
In contrast to the Liberal spitters (reference to the 70's Fonda crowd who gave such a warm reception to Vietnam Vets upon their post-war return) conservatives do value and are proud of our soldiers because they voluntarily sacrifice themselves for Carlin's right to run his foul, lying mouth. (Perhaps no one has told Carlin that pink tea parties rarely convince the Taliban.)
Carlin doesn't seem to be the poster child for personal sacrifice, so it's no surprise really that he doesn't understand what an insult he is to the people who are dying for him.
I think it's worth mentioning that he sees abortion as a "choice" when the child it kills is never consulted... and he sees "dead soldiers", who voluntarily fight, as victims of their conservative parents. Apparently, the wheel is spinning but the hamster is dead.