As a character, you are monster cause you are elf and your children will be elves.Everybody else (not counting future children of ours, as once again. I'm not a fucking monster.) will die if I get my way.
Hitler was a jew and his final act was killing last one he could. Admirable.
Nihilism is a view that everything lacks meaning, value. Directed genocidal hatred is opposite of nihilism, it imply that something have value. Killing elves have more value than your elven offspring, otherwise your hate is weaker than your love.