Answer:
Step-by-step explanation:
censorship goes against the very values that are the reasons for the ban in the first place
if a book is offensive to you
it goes against your values
it brings about a feeling of being offended
if this is by design by the author (like mark twain/) then youd be banning someone who agrees with you
if an author is offending you on purpose (like hitler in mein kampf)
then you are depriving others of feeling that way because now the book is banned
you are also depriving others of disproving others who agree with offensive material
those who agree will feel special having offensive material because now it is "underground" so to speak
soviet union ran into this problem when they banned american/western literature