"For the most part, people are not going to like war, starvation, death, prejudice and the destruction of the environment. Then there’s the trap of easy rhymes. Revolution/evolution/air pollution. Segregation/demonstration. John Lennon got away with it by using his cheeky sense of humor to create a postmodern campfire song all about bag-ism and shag-ism. But in less sure hands one might as well write about the periodic table of elements with built-in rhymes about calcium, chromium and lithium."
Writes Bob Dylan, in "The Philosophy of Modern Song" (p. 78).
The song under discussion there is "Ball of Confusion"....
... which he connects to "Give Peace a Chance"...