Tous les écrivains pensent être réalistes. (Alain Robbe-Grillet.)It's not a question of realism being faithful to objectivity while experience is always subjective. This is a sophomoric misunderstanding.
In art, it is not a question of imitating or representing reality, but of presenting, producing or reproducing an experience. An experience is not like a snapshot, a photograph in a newspaper, capturing objects as neutrally as possible.