Board Thread:Naruto Discussions/@comment-995176-20170126010538/@comment-35622277-20170126085135

Team 7's attachment to Sasuke was semi-realistic: Due to similiar cicumstances, only Naruto could understand Sasuke, and vice versa. The same could be said with Iruka Umino, and anybody else who have lost someone (or in this case, all) dear to them. Sakura did not understand this, as she grew up pampered and has never felt the pain of loss. Her schoolgirl crush on Sasuke made sense, but evolving beyond that as he left the village was pure nonsense, especially when said person tries to kill you many times. However Naruto is not meant to be realistic, it's supposed to be a show for younger audiences, and thus contains themes and morals targeted for younger audiences. The bonds of love and friendship prevailing over all is a common one - hence Sakura's undying love for Sasuke, and Naruto's unwillingness to give up on him.

As we now know, Naruto is essentially the embodiment of love (what Asura is in the Naruto Universe), and Sasuke is essentially the embodiment of power (what Indra is in said verse).

Naruto throughout the series has never given up on anyone, and is willing to do anything for them. Hence his rage when Gaara was captured and killed, his promise to Sakura, and most importantly - his Ninja Creed of never going back on his word, because any less would be an act of betrayal. Due to this, he is also willing to forgive anyone - the ideal of 'nobody is irredeemable'. It's also evident in Star Wars, also for younger audiences.

The same goes for Itachi and Shisui, who both possess the 'Will of Fire' (basically the ideal that love is the key to peace), and thus have similar goals. They confided in each other, as they knew their clan thought differently, and instead possessed the 'Curse of Hatred' - the polar opposite. When Shisui committed suicide, Itachi lost the only other person who shared the same dream as he did, and thought of Shisui as a brother. Realizing he was now alone, and in combination of losing Shisui and knowing what had to be done in order to prevent a war - Itachi activated his Mangekyou Sharingan. He only realized after the fact that he was not alone, and had tried to shoulder all the weight by himself, resulting in the events shaping out as he had not intended them. Hence Itachi warned Naruto not to shoulder the burden by himself as it would only make himself and those around him weaker, once again coming back to the themes of friendship and willpower will always triumph over everything.

Nobody is homosexual, though I can see why many people think that.

TL;DR: Unbreakable bonds of friendship are common themes in shows meant for younger audiences.