At least sasuke had a traumatic past filled with genocide and torture which can explain his motives and behavior. It is not his fault people like naruto and Sakura defend him. That's on them. Bakugo doesn't have a history that would account for his cringe-inducing behavior and attitude. He's mean to everyone - not a hero, but a bully. I can understand him as an anti-hero, which would be an interesting narrative, but the way he has been portrayed just makes me roll my eyes almost every panel he's in. I feel sorry for the characters (everyone) who have to deal with his shit.