The Anxious Generation is poorly researched pop science book that people believe to be true because it feels intuitively right to them.

On the surface it seems very similar to a book he previously worked on, The Coddling of the American Mind, which is also full of poorly researched pop science that confirms biases people already had.

Kind of an "airport book"

Is this just your opinion, or is there a scientific retort I can read?

Just like "the science" about brain development ages.