I think maybe you're confused by the definition of equality here. We're not talking about absolute equality of outcomes for everyone. We're talking about equali

I think maybe you're confused by the definition of equality here. We're not talking about absolute equality of outcomes for everyone. We're talking about equality of outcomes between people of equal ability. For example, if two people of equal ability, one black, one white, have equal opportunity throughout their lives, we would expect that on average they'd end up with roughly equivalent outcomes. (Note that the fact that one can imagine some benign circumstance where that doesn't happen doesn't change the expectation---it's a statistical expectation over the entire population.)