Welcome to correction here from a more informed perspective.
Partially because of Fannie Mae and Freddie Mac and the Community Reinvestment Act, banks were incentivised. Black families were targeted by predatory lenders who knew the rules well enough to get the loans for the individuals, individuals who perhaps were not in an economic position to be able to fulfill the agreements of the loans, then resell them in mortgage backed securities. At the micro level, the Community Reinvestment Act was "a good thing". We as a society want everyone to have a home. However, it did have negative consequences at the macro level.
So there was a business opportunity at one time. Is there today? I don't know. And yes, it was probably an over-characterization.