Whereas in the past, all books(+) were written by white guys, plus a few women writing under male pseudonyms; and this situation was called "not political". Writing books about non-straight sexual orientation was simply banned - or, up to the famous Lady Chatterly trial, any sex at all. The last police raid on queer fiction in the UK was on "Gays the word" in 1984. I believe there are still incidents in the US and other places where angry parents try to get books banned from school libraries.

(+) to a first approximation, in the canon of western literary fiction, up to about the 1960s-70s