You're just looking at this the wrong way. Think of the graffiti as "a big bouquet from Latin America" and the murdered whities as objects in performance art.

From the lefty The Peoples Almanac:

Art graffiti, the most recent graffiti trend, reached its peak during the summer of 1972 in New York City, when the subway cars were furtively decorated with spray paint by ghetto adolescents with names like Taki 183, Phase-Too, and T-Rex 131. Rather than simply leaving a plain written message these graffitists embellished their names with decorative and colorful swirls, curlicues, and flourishes. Although the City of New York tried to stop the graffitists (and even went so far as to pass a law that forbade conveying unsealed cans of spray paint in public), art graffiti had prominent supporters. Pop artist Claes Oldenburg compared the decorated cars to a "big bouquet from Latin America," and Norman Mailer analyzed the graffiti explosion as a healthy out-burst of the artistic urge in a repressive environment. They were not alone in this opinion; many of the graffitists have been commissioned to do murals for office buildings and for the Joffrey Ballet, and a group showing of graffiti art was held at New York's Razor Gallery.


© 1975 - 1981 by David Wallechinsky & Irving Wallace
Reproduced with permission from "The People's Almanac" series of books

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You can get a lot further in life with a kind word and a gun, than with a kind word alone.