I recommend everyone watch The Great Hack on Netflix; it is jaw dropping. It's a documentary on how social media / our personal data has been used to influence voting behaviours. It's been going on for over a decade now, in elections in countries across the world, and over time the way that our personal information is being used to manipulate us has got very sophisticated.
Companies like Cambridge Analytica using personal information in a very sinister way, as in the EU referendum, the US 2016 election and many many more. It's a scandal, and makes me very concerned whether we will ever have a fair election/referendum again.
Worryingly, some of the key players from companies who utilised our personal data for psyops for the 'dirty' Brexit campaign now have their feet under the table at No 10, and are heavily involved in the Government Track and Trace app that they are intending to roll out. There's a reason why the Govn didn't want to use the pre-existing platforms that other countries are using for their T&T, and why they want to centralise our personal data.
It is all very, very concerning and there is little we can do about it. On a personal level I could delete my social media accounts but it won't stop these highly effective operations from happening. Democracy is being hijacked in front of our eyes.