You think MS Obito is stronger than Current Naruto? WOW! I'm not even going to dignify that with a response.
Hiruzen was said to be the god of shinobi in part 1, whowever in part 2 Orochimaru calls Hashirama the good of shinobi. Kishi obviously retconned it.
That statement doesn't mean Nagaot and Itachi were on equal footing. And Nagato could barely destroy Konoha so no not even together would they be able to rule the world.
Karin healed Sasuke before he fought Danzo. Danzo was also holding back to fight Obito and Sasuke was only able to continue fighting because Karin healed him at the end of the fight. Had Karin not healed him it would have been a tie.
I know naruto can't touch obito on his own because he isn't fast enough which is a manga fact what you are assuming is since naruto has 9 bijuu's and sage's senpou that he is now fast enough to hit obito but the truth is obito's kamui never changed in speed since he was a kid vs minato until he faced Godara with kakashi that is the only time his kamui speed improved and that was the only time he admitted someone's was capable of hitting him and since naruto has half the power of a juubi jin and it took a juubi jin to be bale to hit obito.
Hashirama has always been called the God Of Shinobi as well as hiruzen their is no retconned in it. In part 2 during a flash back hiruzen tells tobirama and young danzo and the rest of the team he will stay back because we all know I'm the strongest, also before danzo died he said he could never catch up too hiruzen even while having ka and a bunch of izanagi sharingan to use yet he still said he couldn't catch up to hiruzen and said hiruzen's skill with any jutsu is unsurpassed. So again there is no retconned their whatsoever.
How was nagato barely able to destroy konoha? He did destroy 75% of konoha after fighting a bunch of shinobi. Had he just used ct or st from the start the village would have been gone. Also nagato himself as stated by kcm naruto " when he uses the jutsu himself its on a whole different level " and killer bee simply said " this guy is hella strong ". Also the majority of shinobi in the world were less than itachi even while terminally ill and going blind only obito or nagato would have been better of equal to itachi, all shinobi fall before tsukoyami unless their a sibling like sasuke and ka was designed to stop sasuke. Also it was nagato's statement which was written by kishi and put in the manga.
Also yes karin healed him but you know sasuke wasn't 100% not to mention he still had bruises on him from his last fight and he wasn't holding back, we can say he was until the fight actually got serious but when it became adamant to danzo that sasuke was powerful why would he still be holding back?