So to be clear, "you would not be willing to sacrifice your own life, to save the elephants", yet you would kill the father, the brother, the son of someone, to save the elephants?
I'm not interesting in committing suicide, but obviously assassinating people isn't likely to yield a long life for the assassin. The other reality is that "sacrificing my own life" while very symbolic, is totally useless, so I have to wonder why you're so focused on that one point to the exclusion of literally everything else.