Honestly, If we're talking about female characters who receive misogynistic hate then Lyanna needs to be high up on the list. She gets so much hate for a) her proximity to a male character (Rhaegar) b) the pure fanon that people have invented surrounding her and c) resentment that she's such an important part of the story. And the thing is, for as relevant as she is, we simply do not know enough about her character to justify the hate that she receives. A lot of it is just people inventing reasons to dislike her. I also find it funny that a lot of people who dislike her are Rhaegar antis who characterize their relationship as forced and non-consensual, but then they'll still find reasons to hate her for it. She's supposedly bratty and immature, but also somehow intentionally seductive and evil for "stealing" Rhaegar and hurting Elia 🙄. I wish people would learn to separate canon from fanon when it came to discussing these characters.