for all we know madara could be lying
yes but remember itachi did gave him powers so he basically has uchiha dna and as for the rinnigan i think the s6op died by old age lol he was or died inventing something s6op was the master of all shinobis and ninjutsu he created all that but he wasnt the one who made the kg it was his son one of his sons
Yeah i know, but i hope you weren't implying that Itachi passed on Uchiha DNA through a genjutsu.
well not thrrou genjutsu but the powers itself dude
Yeah that is possible, but not powers that require the use of the Sharingan, and another problem with passing on powers is that Itachi doesnt know all the Chakra elements Naruto posses ( same goes for Naruto himself ).
well naruto knows he has wind element and most kages can creat 2 elements so naruto might creat wing with who knows what yet but yea u know wut i mean right?