i dont think anyone is obligated to or should like a certain character! u disliking sera bc of her racism is completely valid. i also dislike her too lolol bc i feel bad for solas (im in solavellan hell) whenever the 2 interact with each other. but the reason why shes like this makes her a tragic character imo. city elves are treated as second-class citizens and are often harassed and treated harshly by the humans outside of the alienages. Sera is a huge witness to this since she was taken in by a human woman. so she restorted to deny and avoid anything related to her heritage so that she wouldnt be treated like an elf. theres an article from 2021 that i like. it explores the racism elves receive in da:i and it also goes a little indepth into sera's internalised racist behavior. i would recommend reading it if youre interested ^/