AHC/WI: Colonial/Early American attitude on race was like that of Brazil

What if the attitude on race in colonial, and post-independence, North America, was like that of Brazil? With policies of assimilation and 'money whitens', rather than separation and the one-drop rule?
 
From a certain perspective, it'll just get worse for a lot of black Americans in the long run. The attitudes regarding the race issue in Brazil and Latin America is shameful and having that in America would be horrible.
 
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