It is difficult to find a balance between showing realistic depictions of peoples' reactions to a crisis (which may often be selfish) and also depicting a character who puts themselves aside for the greater good. While Anna, in this scene, definitely prioritises the greater good and doing the right thing over herself, she is still hindered by the guilt she feels at learning of Elsa's "death".
He was never fully able to descend to Azula's level because he always valued at least his own people. This meant that once the propaganda and brainwashing was shown to be wrong, he was more quickly able to switch to the good side.
Marinette is also frequently the first person he goes to when he has a problem. He genuinely trusts her judgement. And let's not forget that Marinette forgets how to string sentences together around him so it's not even a situation of them just being really close friends. It's him actively getting through Marinette's awkwardness in order to be close to her.
I love redemption arcs for victims of abuse. I think they serve as a wonderful message. A beacon of hope. But not every abuse victim has to be redeemed. Especially in a show that has other victims of abuse who break the cycle, it's fine to have a character who doesn't. It's sad but it also serves as a message to kids.
Harry is someone who feels a tremendous amount of guilt over being alive. He has never gotten over the fact that his parents died for him. His mother would still be alive if she stepped aside. And through the years, numerous people have risked their lives for him. And even when they don't risk their life for him, like with the people who fought Voldemort and died, if they're close to him, he will still feel guilt.
He's an intriguing character and as much as I dislike him, I don't think there's anything wrong with you if you like him. He's a gray character so it makes sense for the fandom to be divided.
If you solely watched the movies and never got to experience the pure joy that is book Hermione, you wouldn't know what an absolute menace she is. Sure, she may seem like a sweet little nerd at first. But get on her bad side, and she's not above committing war crimes to put you in your place.
And yes, while it is revealed that Sirius Black was innocent, this is the first book with no real happy ending. There is no justice. And even when Sirius Black, the supposed murderer escapes, the minister for magic is more concerned over his reputation than the risk to his people.
And then you have "Harry Potter And The Chamber Of Secrets". The stakes are slightly higher here. A little girl gets kidnapped. Harry discovers that some adults are actually really stupid. But he still manages to defeat Voldemort yet again. He's allowed to succeed and return home, knowing that he saved the lives of countless.