Whether you care or not do not matter in the least. Its manga fact and nobody can deny it. Besides Naruto being an Uzumaki and a jin would have survived even without Sakura's help but Sasuke would've died.
Besides Naruto was already conscious again before Sasuke, so he could have killed him if he wanted to.
Also Naruto still didnt give up on his way while Sasuke was changed.
He created a Mezo out of his PS. It acted as a container to create something. Whatever it was is left a mystery. But, it was a secondary Mezo. Kurama confirms it,
So it's just exactly what we know he did. Not really theorising anything...he just funnelled their obscene amount of chakra into his Susanoo that created something on par with Indra's Susanoo.
Besides Naruto was already conscious again before Sasuke, so he could have killed him if he wanted to.
Also Naruto still didnt give up on his way while Sasuke was changed.
I think this was tact on his part rather than continue their fight. Based on Sasuke's destructive personality, he probably wanted to explore Naruto's feelings more by admitting he lost rather than outright kill him. Not saying he didn't but I see it more as a draw. Why? It's a very emotional experience to fight a friend especially when your ideals take priority over their life. It was hard for him to let go of his past.
I say this from a psychological perspective of course.
Just like Madara when he used Kurama against Hashirama...Sasuke lost to Naruto while using all nine beasts. That's a 10 vs 1 match Naruto soloed and still had the will to fight while Sasuke did not. Weak body, weak psychology.
why thats a mighty groovy idea but i think its just a avatar made out of the large chakra of the bijuu theres so much the groovy sasuke probaly could not hold it all in for long and had to make a avatar out of it to store the groovy chakra
I mean in vote 2 when Sasuke took chakra from Bijuus.
Kurama praised Sasuke because he was able to combine 9 separated bijuus chakra into 1 chakra creature.
Now look at this picture
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It has every similarity with human except that part in back. That part is actually a tail. If you think that is not tail than what is it. Why would creature that has same figure as human have that part on his back ,why would Kishi make that exception ? Its surely tail
We already know when you use bijuu chakra tails are forming.More chakra means more tails.
This creature has 1 tails which means Sasuke took about 10 % - 12 % of each Bijuu chakra. More chaka would mean more tails.
So in some way Sasuke created Bijuu like creature.
To tell the truth ...
that fuk didn't know what he was doing back then . At that time he just needed chakra and knew rinnengan has the ability to do so. So he just started sucking chakras from bijus coz he has gotten the test of it by the free given kurama clock by his gay god naruto during the war and knew how powerful it could be.
No need to get into this deep shit.lol
"I can't handle Naruto in a fair fight, but this Rinnegan that was handed to me has the ability to store the chakra of these more powerful than me outside sources. Oh shit, even with all these free power ups I can't win. Naruto, I lost..."