he’s still being
controlled by Kabuto so it’s not 100% his mindset regardless. Kabuto's control made Nagato
more efficient in ways he didn't even know. It was essentially Kabuto vs crew and Nagato's mind took a backseat. (
Nagato can detect Itachi using his Mangekyou sharingan,
even if he misreads the jutsu)
I'll address this entire scene instead of arguing against your points. Konan told Nagato
not to use CT because his body was already in no shape from having to wipe the entire Leaf (which he needed to deactivate his other paths for), as well as fighting with Leaf ninja and fighting extensively with Naruto. Additionally we can see that Pain made this CT while he was on the run from 6-tails Naruto, so its not like he needed to focus so much he couldn't move. Additionally, Naruto was pretty much
sealed to the outside of a 99.9% complete CT, which Nagato
considered making bigger,
because Nagato knew of the 9 tails.
I disagree with your logic. This implies that they are all equals which they aren't. Perfect Jinchuuriki Bee > KCM Naruto > Itachi. The full tailed beasts' bijuu bomb scales to 26.11 gigatons. A
charged bijuu bomb between Kurama and Gyuki share a value of 1.2 teratons. Nobody knows how strong a KCM wind style rasenshuriken is, but 6 tails Naruto's biju bomb is 2.39 gigatons, and KCM is above that. Itachi nearly became a stain on the ground
with skeletal susanoo after Kirin, which is only 600 megatons, roughly 4x weaker than 6-tails Naruto's bijuu bomb. Mind you, Nagato took a lariat from v2 8-tails Bee (
and literally absorbed the chakra of the entire form which healed him), who should be several times stronger than 6-tails Naruto due to the number of tails present.
TL;DR: Bee contributed to the lion's share of AP that destroyed CT based on quantifiable feats, followed by Naruto then Itachi. You would have to prove one Yasaka bead is at least as powerful as Bee's BD.
This makes no sense and are featless for doing what you think they can.