Everyone needs someone saying something like the N word in an official document before they can buy that racism exists. It's not possible that capital follows racial lines (spoiler: it does) and that therefore incentivized products to develop in a particular direction, to appeal to the folks with money? You don't need "overt racism." You don't need a guy twirling his mustache, spouting white supremacist rants.
You just need wild, race-based income inequality.
Guess what?
That happened.