What up with... (1)

Ok, I (Shodai Hokage) will be starting a What's up with... series.
I'll discuss some wierd stuf in Naruto, some continuity errors, or stuff they could have done better.
Alright, here goes...
What is up with all the Sharingan users not doing anything during the Uchiha Clan Massacre?
I mean, they had the Sharingan eye, one of the three great Dojutsu! Surely they could have been able to stand up to Itachi... even if Madara was helping. What they should have done was to force Itachi to exhaust his Mangekyo Sharingan, then they could have killed him so easily. With Madara, a Fuinjutsu would have worked... basically, what I'm saying is that the Uchiha are supposed to be the ultimate clan in Konoha, and they basically don't resist a couple of their members killing them.
Of course, this post isn't to take away from the cool experience of reading Naruto.