In short, we are extremely vulnerable when we read and are only happy with authors who share our inclinations, concerns, prejudices, illusions, pretentions, dreams, and who have the same values, the same attitudes to sex, politics, death, etc.
Does the media tell us the truth or is it up to us to read critically and listen critically in order to arrive at a more objective truth of events?
I have argued, for much of my life as a writer, that the breakdown in the old agreements about reality is now the most significant reality, and that the world can perhaps best be explained in terms of conflicting and often incompatible narratives.
In Huckleberry Finn, if the offensive words are removed, it is because an individual might learn racism.
Queer criticism, post colonialism, African-American criticism, feminism and Marxism all affirm or infer that the reader will learn different values from the literary texts they read. Also the passage of time often changes the meaning of a fact.
Even more fundamentally, we are saying that this is more important than that. It follows, therefore, that truth is the same for all of us, thus, one should be repelled by the expression that "what is true for you is not true for me.