There can be no hope of sorting out how the warped minds of the majority of men today operate. For one thing, they DON'T generally lament abortion, they are trying desperately to get women to have as many as they like, for "free" (paid by the taxpayer). They seem to lament the lost of our soldier's lives, but they certainly didn't lament the bombing of a predominantly Catholic city in Japan during the World Wars.
There is no question that people today are very, very immoral and hypocritical. But all we must concern ourselves with is, "What does the law of God teach?"
Self defense is not a sin. Killing an unborn child, no matter how it got there, would be, because the unborn child has no guilt. An unjust war is a grave mortal sin. A war for necessary or just reasons, as far as I know, would not be.
The way that the laws of God are trampled today is surely scandalous. The way they are half followed on one hand (people are not just running around killing each other all over the place) but totally ignored on the other hand (people killing anyone they feel shouldn't live... unborn, people of other religions, the elderly or handicapped, etc), is hypocritical and disgusting. I can't really see what there can be to say besides this. Many atrocities are being committed today, and in cold blood. We can only hope and pray that God will soon help His Church, so that the Church can begin converting people to a truly just and holy way of life!