Honest question: how well does that actually work in practice? Do cabbies generally fear the prospects of turning down have-to-takes? When was the last time one faced any consequences for nope-ing right past a black person? And would it even be practical?
And how well does this "vinegar" strategy work to improve supply generally? Would you prefer a world in which grocers had to maintain constant produce prices through the year to the current one in which they charge more as the seasonal supply contracts?