Bakugo is a lot more nuanced than all those others, that's kinda what I like about him. He is super self-aware and is trying to change but also doesn't betray himself and the way he lived up to that point either. Usually when a character realizes the fault of their ways they make acts of contrition, but he doesn't. It's a very cool sort of contradiction.
I've heard this argument, but I highly disagree. I know part of this characterization marches on, but him telling Izuku to go kill himself, Baku-***** can still fuck off for that. Hate stories that ignores what bullies do or try to downplay actions as some absurd virtue. Nor has he apologized for it. Even the author of MHA regrets making Bakugo such a bastard in the beginning. Bakugo doesn't have that much nuance to him. Like certain other shounen-jump rival called Mr. Uchiha, Bakugo is a self-entitled shit head. While he does get called out on more compared to Sasuke in certain regards, there is not much to this character I have already seen done better. Granted, making a likeable jerk is hard writing, but too many creators have been fucking this up lately. Doesn't matter if it's Japan, US, or somewhere else in the world.
He would never be this appeasing sort of floormat that took Zuko's shape in the last season of Avatar and apologize for being an asshole and beg people to forgive him, he would sooner just sacrifice himself to save people's life than apologize to them.
I don't expect to him to be like Zuko, but Zuko actually owned up to his shit and admitted mistakes out loud. The problem with Bakugo is that lot of it is the empty grandstanding. It's the typical, Bakugo needs friends and shallow "power of friendship" that does not work. Another problem is that even with all of that, he's an egotistical shit head that still can't admit it or has dumb way of showing it I don't like nor care for. I'll bring up a bully character done right: Pacifica Northwest. At the start she was your typical Alpha-Biatch type character, but you would see little gradual changes that build up. You find out early on why she's the way she is, and in her focused episode you see the shit Pacifica has to put up with her parents. The show never makes excuses, nor tries to make her negative qualities into some "virtue". And even after show ends, there is a comic sequel that further explores her characters and has some insecurities she needed to let go of. Then there are other Disney shows like Owl House
that apparently gets this right too. I have not seen those yet, but I do have curiosity for both.
Another example of this done right is with Satsuki Kyurin and her Elite 4. Straight-to-the-point: Kill La Kill
doesn't make excuses for what they done and expects to them to own up to all of their actions and be better. Which is funny, because Satsuki is technically a worse person than Bakugo at the start. A similar case for Ren Tao from Shaman King
. Started off as a villain, but we did see gradual change and why he acted the way Ren did before changing for the better. Even in with his changing, Ren still had his own troubles and trauma he needed to move past and learn not to make excuses about them.
While Bakugo didn't have physically or emotionally abusive parent(s) like Zuko, Satsuki, Pacifica, or Ren Tao did, but the trouble still starts at home. We see immediately after that episode where Bakugo gets rescued from getting captured at the training camp that his mom ain't exactly nice and where he gets it form. Lady, blaming your kid for getting captured is wrong, and you should be fucking grateful that he didn't get crippled or worse! Mitsuki ain't what I would call a good parent, and it's obvious she wears the pants in the family. What sucks even more is that the anime and manga try to play this for comedy, but Bakugo is obviously and rightly affected by this. Blaming himself for All Might's condition, when the man was already working with a career breaking injury, long before everyone else found out. Note we're still supposed to like his parents, but I dislike both. The father doesn't do much to argue against her, and more or less goes with her argument without much of a fight and a minor shrug.
But he is aware that he's being an asshole and is trying to change, and, most importantly, everyone around him is also aware that he's not being honest to his true feelings when he acts like an asshole, so that just presents a very interesting dynamic that plays out. Everyone goes from being kinda scared or put off by him to kinda coddling him by tolerating his outbursts, it's hilarious.
That's YMMV and is almost borderline show, don't tell. I'll give the show credit for doing some showing, but it doesn't feel earned for me. Like I said before, I have pretty much a low tolerance for characters like Bakugo or Sasuke, because the author or writers usually fuck it up, and they become unintentionally unsympathetic. That is all I will say on the matter, because you could not convince me otherwise.