What the hell are you saying?
Kakuzu is a mass of threads, it sliced him up something fierce and why the hell you're comparing base Naruto's barely mastered FRS to SM Naruto's is beyond me, it deals internal damage along with slicing up the opponent AS IT DID TO HUMAN PATH, turned the thing into dust. Raikage tanked the hell out of it, if he was alive he'd have a few scratches at most, Naruto stated it had no effect, everyone in the company knew the Raikage was an edo, a normal edo would have been down long enough to be sealed clearly.
Naruto says it didn't put a scratch on him, meaning when it hit it did nothing. End of story. All the Manga shows is smoke and the usual cracks Edo Tensei have. That's not actual damage. :lol Naruto said he took no actual damage. Nothing more for you to argue. FRS didn't penetrate his skin so why in the hell would it do anything to the inside of his body? :lol :lol :lol
Ok i admit i was wrong.....It said FRS isn't bringing down 3rd raikage. The user of the technique admitted that and so did multiple people there. If a RS can do the raikage in then why is there so much hype and concern about his durabitlity if in reality he isn't any better than ordinary ninja. Like KG said RS disintergrated human path but the 3rd was moving seconds after. Before you say he healed fast edos take time to heal from big damage or at least Kishi in this case made it clear when the 3rd took real lethal/serious damage. That's why he couldn't just pull off his arm and continue fighting when Naruto made him strike himself.