Earlier quoted context omitted.
Twenty years ago my teachers were telling me not to use Wikipedia because you can't trust anything on the internet. You should never date someone you met through an app or website because they are 100% murderers. "The internet is for porn". Things have a way of improving over time, and people always overestimate societal risks of new tech in the beginning.
Young girls suicides, Brexit&Trump (post-truth politics, general democratic decline), demographic catastrophe, obesity crisis are often partially attributed to social media. Not saying that tech is inherently evil, these could have been prevented, but to me it seems we have underestimated the social risks and failed to regulate accordingly.
That said, while I am generally skeptical of these effects, fake news are a real problem that social media has exacerbated.