Re: Naruto inherites the Rinnegan (partially) from Nagato....Why?
Naruto doesn't need a doujutsu. His next benchmark is his father so its logical to believe he could learn FTG.
Naruto doesn't need Ma & Pa to use SM what are you talking about ???
Also the Kyubi won't get extracted. After the intro of KB it would defeat the purpose of being a jinchuriki if Naruto lost his Bijuu not to mention he would kick the bucket if that happened.
You're theory is nothing but a fanfic. Sorry bro !!!