Nobody seems to care to look at the actual data she provided. It's weak imo. 15% of teens say FB makes their lives worse, 34% say it makes their lives better, and 51% say neither. This is an online poll. Among teens who are depressed, more say that FB/IG has a negative impact. Well ok, a more negative response is exactly what you'd expect from people who are reporting to be depressed.

Then there's the supposed impact of the algorithm on divisiveness. There's almost no data backing this conclusion up, just anecdotal complaints from some European political parties and oh yeah, media outlets like Buzzfeed.

Overall, this data is not compelling and the conclusions drawn from it appear highly sensationalized.