"A civilized nation does not kill babies waiting to be born. And if we dare carry this life-affirming perspective to its logical moral conclusion, we must also declare that a civilized society does not kill anyone, for any reason, period."
You wont get any disagreement from me; however, "...if we dare carry this life-affirming perspective to its logical moral conclusion..." we will treat as sacred the ecology of life from which we come and to which we return. A civilized nation does not kill the common ecology on which it and all life depend.
Our consumption habits are culpably ignorant of and blind to the sacred relationship of all life in nature; and our self-arrogation over all other life is totally out-of-proportion to what global ecology can sustain. We must restrain our appetites - and our numbers - if we hope to insure a sustainable ecology/ future.