It would be good to have you give examples of how African, Asian, and Latina women have been portrayed in highly stereotyped ways. What comes to mind for Africa is women with large eyes staring out while a sickly baby tries to nurse at breasts that are shrunken by malnuitrition. For American women of African descent, the picture is something else: it is the highly eroticized image of a Blues SInger or star like Beyonce.
Latina women are usually seen as high strung and "hot," or they are "fat mamas."
Give some further examples, please, of what you have in mind as the extreme stereotypes.