> I don't think a lot of people dispute that more screen time is harmful.

I dispute it. Me and my friends played video games a lot, watched a lot of tv, etc. We all turned out fine. I think most people did the exact same thing and turned out fine too. Screen time = harm is an idea that flies in the face of the common reality lived by everyone born since 1980.

This idea sounds a lot like people who thought novels were dangerous, that comic books were dangerous, that rock and roll was dangerous, etc.