The Obama campaign took all that data and did normal political campaigning with it: targeting likely voters and bombarding them with campaign messaging. Cambridge Analytica ran Facebook-powered ratfucking operations: for example, organizing Black Lives Matter rallies with violent messaging, then highlighting the violent BLM rallies to scared white rural voters.

Facebook should never have facilitated this level of data collection for any campaign, but characterizing the current anger at Facebook as media-driven favoritism is Internet Research Agency level trolling.