In fact, that same opportunity is available to every other corporate manager in the industry as well, and they're rejecting it too (remember that discrimination must be widespread or all blacks would move to nondiscriminatory firms).
Black corporate managers feel there is discrimination in all firms.
mnli hypothesis: Black corporate managers feel there is discrimination in all firms. premise: In fact, that same opportunity is available to every other corporate manager in the industry as well, and they're rejecting it too (remember that discrimination must be widespread or all blacks would move to nondiscriminatory firms).