1) Naruto's KA set up Itachi to go after Kabuto. 2) Sasuke tried to kill Kabuto a couple time at the start of the fight with Itachi telling him not to, yes he helped but it wasn't to help anyone but Itachi. 3) stopping Edo Tensei did pretty much nothing, the only free Edo's were Madara, Chiyo and Kimimaru and only Madara stayed and he was the real threat while Gai and Kakashi could have handled Chiyo and Kimimaru with their backups. 4) Sasuke helped revived the Juubi so he indirectly resulted in many death like Neji, Shikaku, Inoichi, Ao, and many others.
5) helped caused Juubi Jins to be created by helping make the Juubi Jin. 6) Sasuke uncaring attitude shows he could care less about what he did or what others think about it. 7) some people like to make excuses that Obito cut a tentacle from Bee but guess what, that was after the Juubi revival started and it only happened because Bee was blocking giant shurikens aimed at Naruto who caught the last one. So the fight would have been different if Obito didn't have the 8 tails tentacle and he only shown interest in capturing Bee and Naruto in general.
8) helping in the world only would make up for helping Akatsuki but it doesn't make up for the death he directly caused and indirectly caused. Doesn't change that he left Konoha, killed a Hokage candidate (yes we all know Danzo deserved to die but look at it from the point of view of the NV who sees a missing Ninja who joined Akatsuki, attempted to kidnap the cloud Jinchuuriki, and attacking the Kage Summit prior), being a missing Ninja is the death penalty alone but being a international criminal is death penalty, attempting to kidnap Bee is one as well as A asked Konoha if he could kill Sasuke, Ataacking the 5 Kages would have resulted in Sasuke death if Gaara didn't save him from A/Zetsu saved him from Mei, Obito saved him from Oonoki.
To redeem himself means he needs to change how he is, actually care about people and want to create bonds with them, spend a lot of his time doing things to help others to help them and not because the end goal helps him (like how Naruto would save anyone he can such as Kakashi and Sakura from falling in the lava while Sasuke didn't care if they died.
1) This thread isn't about Naruto's contributions to this war.
2) Yes, but Sasuke realised he must have a killing intent to defeat Kabuto [
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]. He wasn't being a burden to Itachi and in fact, has saved Itachi a couple of times in that fight.
3) Stopping the Edo Tensei means the SA don't have to worry about sealing the rest of the reanimated zombies, who can't be dealt with by normal means. It was a stress-reliever; the Alliance don't have to focus on zombies anymore and they can start to worry on what's happening elsewhere in the battlefield. Even Onoki praised the people who were responsible for stopping Edo Tensei, calling them heroes.
4 & 5) Yes, he did, but that doesn't really matter when he later wanted to stop the Juubi and IT from casting. Not to mention, you can't just blame Sasuke for starting the mess. Everyone had their roles too, to stop the enemies from becoming the Juubi's Jinchuuriki. If Sasuke was to blame for the stolen Hachibi's chakra, then we might as well blame the SA for not figuring out Tobi's plan early enough and preventing this [
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] from happening. Sasuke wasn't solely responsible for creating the Juubi's Jins; everyone else couldn't prevent the event from occurring so they are just to be blamed as well.
6) If you didn't realise, he actually has a caring attitude since he wants to protect the village his brother cared so much about. He wanted to stop the IT, and did what he could do to ensure the world won't fall into the hands of that technique. Sasuke wants to change the current shinobi system and break the cycle of hatred...
7) The tentacle was cut off [
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before the Juubi's revival [
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]. Either ways, Obito would have still got it.
8) All of those criminal acts you've outlined are outweighed by the contributions that he has made to stopping the war.