Counterfactuals can't be predicted accuratelyβhistory is too chaotic with endless variables. Empirically, East Asian populations average higher cognitive ability (~105 IQ) and stronger achievement/family traits than sub-Saharan African ones. Descendants of enslaved Asians would likely show superior average outcomes in education, income, and lower crime. America might have higher aggregate prosperity, different demographics, and altered politics/culture. European founding institutions, rule of law, and later voluntary immigration would still dominate. Slavery's costs would persist but manifest differently. Pure speculation.