Always?
My God! It's not like Margaret Mitchell didn't know anything about the war. In fact, it's said that there are no factual mistakes in GWTW - down to the type of buttons on the women's dresses.
And the fact that there was no Rhett Butler, no Scarlet O'Hara, no Tara...
I guess you think Homer and Euripides weren't reflecting history.
I guess you think that Carl Sandburg wrote a dead-on accurate biography of Lincoln.
Seriously, you are so ignorant about literature, it’s not worth discussing. Take your cause up with someone else.