https://www.washingtonpost.com/techn...ublican-shift/
This interesting article talks about how facebook has become more right wing. probably also as its user base has got progressively older.
https://www.wsj.com/articles/faceboo...ns-11590507499
And this shows how they became aware they were fuelling increasingly divisive content that was weighted heavily to the right wing, and had identified steps to redress that balance, but it was shut down by the top management