True, but to deduce the more morally "right" decision is all that we can do in situations such as these.
Yes, that is all we can do.
Now the question posed/implied in the OP is what
standard do we use to deduce the "right" decision. Do we use the New Testament? Do we use the Old Testament? Do we use the Qu'ran? Do we use the Vedas? Do we use the teachings of Buddha? Do we use the teachings of our own personal new age guru? Do we use the writings of L. Ron Hubbard? Do we use our parents who may have been influenced by any or all of these things throughout their lifetime? Do we use our middle school peers?
So, the real question is
what moral standard should we adhere to? Not
if there is one, because we can all use a "standard" to uphold. Whether it be a religious standard dictated by Moses or Jesus of Mohammed or Buddha or Zoroaster or various gods/their adherents or a more secular standard such as that proscribed by the American Constitution/The French Declaration of the Rights of Man/The UN Declaration of Human Rights/etc ad nauseum.
The "deduction" of right and wrong seems mighty complicated when seen in the terms of the whole world.
The deduction of right and wrong seems even more complicated when your "right" is seen through the eyes of another's "wrong."
From what standard do you "deduce" this from?
The one you believe in? How is yours "right" and everyone else's "wrong?
Where is the logical deduction in that?
To me, right and wrong seem highly emotional, not logical at all, my own rights and wrongs included.
The questions that sidelined posed was meant to represent the complexity of morality and the human condition. When is murder (killing) justified? When is stealing justified? Is it murder? Is it stealing?
That is where our "standards" come in and who says what is "justified"
We all know what is right and we all know what is wrong. Certain cases force us into deciding what the right and good is, it may be a struggle, but we can all make the right choice.
Yes, but a struggle towards what? Towards a perfect Christian Utopia? Or a perfect Islamic Utopia? Or a perfect Hindu Utopia? Which one? We all have near universal taboos, in the general sense, meaning that murder is defined as justified killing in certain circumstances, rape is considered a crime in certain circumstances or not (it was even OK to rape your wife in the US until just very recently), child abuse is defined differently under different circumstances/cultures, incest is defined in varying terms in varying cultures, art is considered pornography in some circles. All of these crimes/"sins" have a context. We all judge the context based on where we live and how/where we were raised, but does that mean that my definition meets yours?