In other words, Facebook users helped sway public opinion in the 2016 elections without their consent—and the social media giant is now irrevocably entangled in the ongoing American political chaos.
People know putting data on facebook makes it available to data mining by political users.
If you think about it....back around 2010 to 2016, all these social media empires were hyped and talking about bring change to the political world, and they were stacking the deck against the Republicans, and branching off to stack the deck in Egypt, Tunisia, Iraq, Syria, and even Russia.
Well...Cambridge Analytica hired up some geek insider and then took the knowledge base, to help Trump. In essence now....after all the fake news talk, the evil Russians, the dossier business....it comes down to personal data which Hillary was already using in her campaign....that Trump flipped around and used the social media angle to ‘trump’ Hillary and the social media.
If you think about it....from beginning to end, just a brilliant move.