But the real impediment is that there's a vested interest in keeping the origins of film noir as murky as possible--there's a lot more opportunity to play fast and loose with history that way. "Inside politics" within the studios can then take precedence to an analysis of story elements as they relate to contemporary social issues and conditions.
Also, your analysis is "too left" even for many erstwhile liberals, which produces a strong reflexive rejection of the concepts espoused. They seem only willing to deal (tacitly and gingerly) with such issues when they arise in non-American noirs...
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