They do cite a number of randomized controlled trials that show it's social media: https://docs.google.com/document/d/1w-HOfseF2wF9YIpXwUUtP65-...
> Or is it also the knowledge that they effectively have no future. Rent is going up and mortgage rates are going up faster. A shrinking portion of young adults can now afford housing. The economy is becoming so disfunctional there's almost no reason to bother participating. When children end up in that position their family will turn on them and they have nothing materially or socially.
As a side note, "problems occurring" do not mean "they effectively have no future".
Speaking as still a young person, these are problems the last generation has left us. But they're their problems; hold overs from the generations best known for their blood lead levels. We'll fix them and, with any luck, we'll be better ancestors to our children. I'd rather you not throw us over the boat yet.