"You are right Hermione, but your plan has flaws. Even if we could somehow get to Nagini and kill her. What about me? The venom would kill me, so what is the difference? In my second year of Hogwarts, I got stung by a basilisk and then healed with Phoenix tears. As you can see, I'm still a Horcrux. This can only mean one thing- the only way to destroy the Horcrux inside me is to kill me. Why not let Voldemort do it if it will save lives?" 