Generally, in simple evolutionary terms the female is the most important part of the species, after all, they carry the young, they give up nutrients and sustinence, therefore it is their burden, and their choice, a man should have no right to force her to have it, nor to make her abort it, after all, it merely starts as a bundle of chemical based cells, should you really expect that to be intelligent? I mean, you could argue (if you believe in such a thing) that a soul resides and therefore by killing it you are destroying the soul or something similar, but then what sets us apart from our genetic cousins like apes? Nothing, thats what, so it should be a moral decision made on the woman's part, the man has no authority to say as he is merely a pair of testicles who happens to be able to walk and religious belief should have no right to interfere at all.
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"When I Die, I Rot"-Bertrand Russell
"War does not prove who is right, only who is left"-Also Russell
"Religion is the Opium of the Masses" -Karl Marx, Father of Communism