I don't agree that we could ever be within our rights to eradicate a sentient species, no matter its behavior. We don't have the right to be moral judges for the other races of the universe. Self-defense is one thing, but that doesn't justify exterminating an entire race including those who aren't actively threatening you.
And it would be a gross misreading of the episode to interpret Kevin's act as anything other than a horrific overreaction. Kevin himself saw it that way. He never remotely claimed that he was justified in his act. He acknowledged it as an act of insanity, an unthinking retaliation beyond any reasonable justification. He called it his crime and his sin.
And it would be a gross misreading of the episode to interpret Kevin's act as anything other than a horrific overreaction. Kevin himself saw it that way. He never remotely claimed that he was justified in his act. He acknowledged it as an act of insanity, an unthinking retaliation beyond any reasonable justification. He called it his crime and his sin.