If a library has a book on [insert-controversial-topic-here], does that 
    imply endorsement of said topic by the library or by someone who reads the 
    book?  Should the library burn copies of books on such topics to protect 
    the citizenry?  Absolutely not.

A system distribution is more like an anthology than like a library.
We do consider the editor of the anthology book responsible for the choice
of what to include.