Iman also criticizes casting directors and stylists for their part in providing too few black models to designers. She says it's an attitude that has to change.
"I don't want to ever hear again a young model telling me that [casting directors] have said to her: 'We are not seeing black models this season.' To me that's offensive. To me that's a racist remark."
The Diversity Coalition hopes that by getting the conversation started and raising awareness of the lack of black models, they will force out discrimination from all corners of the industry.
Campbell says they'll keep speaking out until they see real change that lasts from season to season.
"We don't want this to be a trend. We want this to last."
In this famously fickle industry, these three women have a fight on their hands.