Actually all human have chakra, civillians and ninja's... See Rock Lee with his chakra he can easily pass off as a civillainTsukuyomi works by disturbing chakra right? Then call the ramen guy or other civiians because he has no chakra and therefore will not be affected by Tsukuyomi. =D
that's simply the weakness
Good Analogy. but ''assumin kage bunshin'' I dont think soNaruto could create his bijuu avatar overlapping Sasuke's Susanoo on the outside. Assuming that Kage Bunshins are immune to the genjutsu. Maybe Sasuke could make a clone and send it outside of his Susanoo and use the Rinnegan's visual link to see in order to move his Susanoo. Naruto uses his sensory abilities to move his bijuu avatar in tandem with the Susanoo.
Sakura is strong in her own right too but currently out of her league ^_^*Sasuke and naruto* don't bring sakura into this.
And well we have to wait and see,not really sure what will happen.