Personally I think it’s impossible to kill Naruto. So, I disagree with the whole thing. Let’s just go through Naruto’s powers quickly.
First, his chakra levels are insane. He has the Six Paths chakra, Nine tails chakra and the chakra of all the other 8 tailed beasts. Also, he has his tremendous Uzumaki chakra. Onto his speed now. He is the fastest character in the series, he surpassed his father as the fastest character in the history of the shinobi world. Lastly, his power is unparalleled. With his all these things he is untouchable. So, if Naruto isn’t dead where could he be?