People had a big problem with Obito after he was unmasked, he just seemed like he lacked his own identity, like he was a hollow character. But that was the point...
Obito was a person who was alone from the start (like Naruto he had no parents and no one to love him) but unlike Naruto he didn't create an identity for himself by acting out instead he defined himself through others, through his relationships. When he was assigned to team Minato that became how he defined himself. That is why the torn up picture of Team Minato is shown when he "pulls himself back together" as the Juubi Jinchuriki. Alongside that, Rin's awknowledgement played a huge part in his defining of himself, which is why she was such a crucial part of his self identification.
When all this was torn apart by Madara's manipulation, Obito himself lost his own identity, and thus it was easy for Madara to use him as a blank slate to have mirror his own persona and carry out his will. Obito's desperation for an identity made him perfect for Madara's plan. Obito's condition is similar to character's like Kabuto but in this case Obito's flaw was used as a foil to Naruto, who also valued bonds but didn't let them define who he was.
When Obito was unmasked and his true identity was revealed, he was back to being "hollow" and identity-less, at least from his perspective. He makes this pretty clear as he denounces the "old Obito" as dead and regards identity in "this world" as meaningless, using this philosophy as justification for the Moon-Eye Plan. It takes witnessing Naruto's ability to maintain his moral despite witnessing his friend's slaughtered before his eyes to begin to open Obito's mind to the idea he might be wrong about his nihilistic outlook.
Still, Obito doesn't give up on his philosophy until finally coming face to face with Naruto in a battle of ideals, and having Naruto's conviction literally overpower his own allowing Naruto to break the Sword of Nunuboku and free the Bijuus. Obito, now humbled by the power and conviction of the opposing force, accepts that perhaps Naruto's way of thinking is the correct one, and that he was deluded by his obsession of what he used to define his own existence.
Obito was a person who was alone from the start (like Naruto he had no parents and no one to love him) but unlike Naruto he didn't create an identity for himself by acting out instead he defined himself through others, through his relationships. When he was assigned to team Minato that became how he defined himself. That is why the torn up picture of Team Minato is shown when he "pulls himself back together" as the Juubi Jinchuriki. Alongside that, Rin's awknowledgement played a huge part in his defining of himself, which is why she was such a crucial part of his self identification.
When all this was torn apart by Madara's manipulation, Obito himself lost his own identity, and thus it was easy for Madara to use him as a blank slate to have mirror his own persona and carry out his will. Obito's desperation for an identity made him perfect for Madara's plan. Obito's condition is similar to character's like Kabuto but in this case Obito's flaw was used as a foil to Naruto, who also valued bonds but didn't let them define who he was.
When Obito was unmasked and his true identity was revealed, he was back to being "hollow" and identity-less, at least from his perspective. He makes this pretty clear as he denounces the "old Obito" as dead and regards identity in "this world" as meaningless, using this philosophy as justification for the Moon-Eye Plan. It takes witnessing Naruto's ability to maintain his moral despite witnessing his friend's slaughtered before his eyes to begin to open Obito's mind to the idea he might be wrong about his nihilistic outlook.
Still, Obito doesn't give up on his philosophy until finally coming face to face with Naruto in a battle of ideals, and having Naruto's conviction literally overpower his own allowing Naruto to break the Sword of Nunuboku and free the Bijuus. Obito, now humbled by the power and conviction of the opposing force, accepts that perhaps Naruto's way of thinking is the correct one, and that he was deluded by his obsession of what he used to define his own existence.
