Personal experience. My "pro life" friends fit into a pretty neat black and white box. My argument is valid. If you are going to whine and cry about the murder of any innocent fetus then why doesnt carpet bombing the enemy knowing woman and children will be blown to shreds bother you?
I know plenty that it does, unfortunately I know plenty that it doesn't and plenty more that are all for it. I strongly disagree with your "neat little black and white boxes" premise. I just don't see people or the world that way.
But that's OK. We don't need to agree lol.