The book is only half true. The media companies show users what the users engage with. It just so happens that most people choose to engage with the divisive antagonistic comments of others. The users who engage with these comments create a cycle of hate for themselves.
I never engage with these posts and therefore I rarely see them. When I do see them in search results, I block the account posting it. I’ve create a cycle of the no-hate.
I had a dream that a hamburger was eating me!