Most people use Facebook without any kind of interaction with the people or the policies of who run it. They simply use Facebook as a way to see what their friends and family members are doing and to laugh at their cleverness and some like to argue politics on it as well. The kid who owns Facebook and the decisions he makes doesn't enter into our Facebook experience. During the period you mention, all of us could and many did just erased strange political news posts and reported them. We are a lot smarter than you think.
Just on this forum, we have no interaction with the webmaster or the website maker or sense his/her presence or views.
Most people I know TRY to read the news without opinion and fewer watch the opinion talkers on any of the major networks.
I am not sure that the Nielsen ratings are something you understand but here is how the public views the three major networks according to Nielsen.
neilsen ratings on news networks - Bing
Google the same phrase...……..