Former “elections integrity head” at Facebook says:

The real problem is that Facebook profits partly by amplifying lies and selling dangerous targeting tools that allow political operatives to engage in a new level of information warfare. Its business model exploits our data to let advertisers custom-target people, show us each a different version of the truth and manipulate us with hyper-customized ads — ads that, as of two weeks ago, can contain blatantly false and debunked information if they’re run by a political campaign. As long as Facebook prioritizes profit over healthy discourse, they can’t avoid damaging democracies.

Source: I worked on political ads at Facebook. They profit by manipulating us. – The Washington Post

As we’ve said all along, Facebook is a surveillance company whose business is a friction-less platform for the spread of propaganda. It’s business function is as an advertising/propaganda operation.