[deliver in whiny nasal voice] "If you don't like it, don't watch/listen to it then!" - that's right. SHUT UP! Never have an opinion! Bottle your feelings until you expire, crumpled in a foetal ball of impotent rage at events, artists and media you cannot criticise on pain of hearing these horrible words!
Second worst is: "If you don't like it, why don't you get up off your arse and do something about it instead of whining." - I imagine someone said this to Hitler about the Jews at some point in his life.