It's very telling that claims that Facebook's newsfeed algorithm under-samples conservative publications do not receive nearly as much criticism as claims that algorithms propagate racialized bias receive.
Many commenters here seem to be frustrated by the suggestion that an algorithm could be tuned to create a bias or reproduce the bias of the data powering it. My point is that similar arguments have not largely been levied against the claim that Facebook's algorithm has bias.
Why are these arguments not made in the case of the Facebook algorithm but are being made here? My conclusion is that people are extremely uneasy with the premise that there is a racial bias in modern American society.