One documentary that came out about 9 years ago or so was "Terms and Conditions." Even back then the nascent world of the internet and social media was being scrutinized for nefarious business practices and privacy concerns. If you have not watched it, please do. You can get it on Netflix.
After you watch "Terms and Conditions" then watch "Social Dilemma" also available on Netflix. Social Dilemma came out in January of this year. You will see how our democracy is being torn apart with the proliferation of social media and the other adverse effects on society. Social media was not born evil, it morphed into something nobody anticipated. You will hear it straight from the gurus of Silicon Valley.
The genie is out of the bottle, folks. Nobody knows what the truth is, and nobody believes anything that may go against their preconceived beliefs. Without a common ground on what truth is we will implode. Now what?