7/12/17 Black and White
A black-and-white subject or situation is one in which it is easy to understand what is right and wrong:
Disarmament isn’t a black-and-white issue for me.
(Actually, to me it is, but this is just an example.)
(in) black and ˈwhite
(as) absolutely right or wrong, good or bad, with no grades between them:
My grandmother has very rigid ideas of character and behaviour; she sees everything in black and white.
It’s not a black-and-white issue.