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I'd concur, a colorblind approach would have detrimental effects to indigenous people. Colorblindness leads to ignorance and turns a blind eye to the past when working for a fair future. There's a great journal article on this exact subject:

Fryberg, S. A., & Stephens, N. M. (2010). When the world is colorblind, American Indians are invisible. Psychological Inquiry, 21, 115-119. doi: 10.1080/1047840X.2010.483847

PDF: https://www.nicolemstephens.com/uploads/3/9/5/9/39596235/34_...