The greatest sin of ethnic stereotyping, IMO, was the reversion of a complex, mature character to a one-dimensional angry black man. Luke Cage in Power Man and Iron Fist had become one of the best written, fully developed CHARACTERS, regardless of ethnicity, in the DC/Marvel Universes. The boom happened and somebody thought they needed to "Youthanize" and "Gangstafy" Luke Cage. It was a horrible hack job.