The MHA fandom has a LOT of problems, but trust me, the biggest one out there is not holding characters who were victims of the system accountable for their actions.
Dabi is justified in wanting to take Endeavor down. He is not justified in trying to murder him.
Twice is justified in wanting to find a place to belong. He is not justified in the crimes he's committed to stay there.
Hawks is justified in wanting to protect people. He is not justified in using murder as a means of achieving peace.
And what this fandom is most guilty of? Cherry picking. You do not get to decide one of them is guiltier than the others (and therefore their fans are worth attacking) and you absolutely do NOT get to bitch about the people who like the others when you're being way more disgusting than they are.
Like what you like but the second you set foot into the tags of something you don't like just to shit on the people who do like it, you're worse than anyone you're about to hate on.
Disliking a popular character or ship does not make you special or right. Block the proper tags and fuck off.