We are suppose to dislike David and the more we dislike David, we dislike the curse. The more we dis like the curse we can understand the curse more. With that, we are suppose to hate Regina for enacting the curse and Rumple for creating it. However, it is very hard to hate Rumple because he has charisma and there is something charming about him but in an evil and lovable way. We all hate to love him and love to hate him. Love / Hate. Also the more we hate David now the more we will love him later. Besides it is easier to dislike the hero than to dislike the heroine. Mary Margaret is annoying and dislikable too but as annoying and dislikable as she is….she does mangage to redeem herself in ways that David has not. Remember Snow and Charming have a reciprocal relationship. Snow has saved Charming as many times as he’s saved her. So right now Mary Margaret is more “charming” than Charming/ David/ James.