Plot Hole: "If Harry Potter was a horcrux the entire time and basilisk venom is enough to destroy a horcrux, why wasn’t the horcrux inside of Harry destroyed when the basilisk bit him in Harry Potter and the Chamber of Secrets (2002)?"

Explanation: "It would have been enough to kill him/destroy the horcrux if Fawkes hadn’t been there. A horcrux has to be damaged beyond hope of magical repair. That means death if it’s a living thing, or some powerful magical damage for nonliving objects. It’s not like basilisk venom has any special ‘anti-horcrux’ properties. It’s just a substance that can damage most objects behind the point of magical repair, and Fawkes cured Harry before it could kill him."