> Given that we actually give kids massive amount of attention compared to historical standards ...
This is literally based on a comparison with hunger-gatherer societies.
To the extent that there is any accuracy to your "compared to historical standards", its probably based on a low point reached (in the "developed" world) somewhere between the first industrial revolution and mid-20th century,
Primitive hunter-gatherer societies might have raised their children in a communal way, with relatives and friends living nearby, always interrupting and nagging us.
We, the supreme civilisation, at the summit of evolution, are locked in in individual cages, disconnected from each other, so we can spend more quality time attached to our screens.
This is literally based on a comparison with hunger-gatherer societies.
To the extent that there is any accuracy to your "compared to historical standards", its probably based on a low point reached (in the "developed" world) somewhere between the first industrial revolution and mid-20th century,