I think you are falling into the fairly common "George Soros is evil" narrative and it causing you not to listen to what Soros actually is saying in this particular case.
Soros actually is focusing on three well established points that others also regularly make - these are quotes from the article:
(1) “This is particularly nefarious because social media companies influence how people think and behave without them even being aware of it. This has far-reaching adverse consequences on the functioning of democracy, particularly on the integrity of elections.”
(2) In addition to skewing democracy, social media companies “deceive their users by manipulating their attention and directing it towards their own commercial purposes” and “deliberately engineer addiction to the services they provide”. The latter, he said, “can be very harmful, particularly for adolescents”.
(3) Soros warned of an “even more alarming prospect” on the horizon if data-rich internet companies such as Facebook and Google paired their corporate surveillance systems with state-sponsored surveillance – a trend that’s already emerging in places such as the Philippines.
He isn't talking at all about social movements or populism on Facebook or Google, not at all. Remember that those are often outside of those platforms generally these days, such as Telegram in Iran or Twitter.
I feel like your comment is bringing in an axe to grind because of other grievances with Soros, rather than dealing with what he is actually saying in this particular article.