Korra stan! I think she did nothing wrong prolly more towards in her old age there was a threat too serious for her to handle and after she died the villian whether person or spirit wrecked havoc and the new avatar wasn't any help (only cause they don't know they're the avatar yet) so maybe that's why everyone hates the avatar. My other theory is that since her uncle fused with vatu a dark avatar was born and caused major chaos making everyone hate the avatar... who knows can't wait tho

Also people forget lots of people hated Aang cause he disappeared and the war happened and the fire nation just took over so yeah but of course everyone always wants to hate on Korra 🙄😒