How much manipulation is going on? I find, for example, my wife, making rather absurd comments about Trump and others. Find her news comes via Facebook and others. They present very biased news. Maybe items that match things she’s looked at or expressed about... exaggerating her concerns and fears? Like local news causing people to freak out over a little snow or rain, put multiple locks on their doors. Be afraid, be very afraid.
Remember Barney Frank’s sister in the White House with CLinton? Every morning faxing out the talking points that were pure propaganda? Well, think that times a billion. That is what Facebook is.