"Horrible evil"? Empty and worthless slogans are the same regardless of the dialect.
I have to admit to sharing your embarrassment in the fact that a cheap shot like this could get an entire convention's worth of people clapping and thinking "We support minority slogans!" But what it comes down to is a weak piece of substanceless political fluff. Race baiting, as practiced by both parties (let us not forget the Republican's diversity themed convention, or Dubya's promise to uphold the "Republican commitment to Affirmative action") is just a cheap ploy. The evil lies in the fact that the parties focus more on these worthless slogans and mutual head bashing than dealing with the issues.