The phenomenon where a creative work designed to represent and/or celebrate a minority is hated by said minority for being stereotypical and degrading.
This effect is named after the Disney Channel animated series "Primos", which got a great deal of backlash for containing negative stereotypes and incorrect Spanish.
The opposite is the Speedy Gonzales effect, named after Speedy Gonzales, the Looney Tunes character who is both criticized for being a Mexican stereotype, and beloved for being a heroic, quick-witted, and lovable cultural icon by Latin-Americans.
In June 2017, the city of Philadelphia adopted a Pride Flag with additional black and brown stripes on top, intended to represent people of color. However, this flag and its further redesigns gathered backlash for being uninclusive, including from LGBT people of color. This is an example of the Primos effect.