Censorship is the control of public speech by a government agency; it has always existed and always will. Even the freest government cannot allow state secrets to be published. Censorship, when kept in its legal place, is good; when it is not kept in its legal place, it is bad.
There is a fashion – and as fashions come, they go – of decolonizing one’s bookshelf. The idea is that the reader should self-interrogate his (the pronoun is gender-neutral) cultural influences and determine if they are not right, not approved, not liked. Or, as Pasternak’s officious, oppressive, busy-body Soviet Deputy says, noticed.