As others have said, the other people who feel this way are people who write/read think pieces. The MILLIONS of people buying her music/concert tickets do not care if she's friends with Julia Roberts or Abigail.
That said, I agree that the only part of her image I don't like is her posse of models. Her friendship with Lena Dunham was quite different

than being friends with only tall, skinny blondes. If she wants to stop looking like the leader of a mean girl clique, she should obviously stop bringing her model friends everywhere with her and parading them about on her concert stage.