If we cannot put aside assassination and torture,
then the human race has no hope.
We can and should put aside torture. Assassination, however, is still a preferred tool, when often an alternative is a larger scale military conflict. A focused attack has a better chance of avoiding hitting innocent bystanders.
important point of a democracy - being a beacon of hope
for the future generations
I do not think this is a point of "a democracy" at all.
the choice of targets, is not discussed in a democratic manner,
and almost certainly would not be my choice.
This is a serious point. And it arises in any military conflict. How the democratic public controls its military is a matter of serious study; I am not competent in this, but perhaps someone could suggest a few links?
It seems pretty clear that the US public has democratically decided to delegate the commission of war crimes to its military and not be told about the details.