I get the feeling you want to blame "woke" ideologies for this decline. Please correct me if I'm wrong.
In my opinion we just have it too easy nowadays. Too much entertainment, screens and not enough challenges to keep kids thinking they need to be as sharp as they can be.
The "Fox News" right is just as guilty of letting ideology override reason as the "woke" left. As are many other groups (most of Western politics is a bit more complicated than the US's left/right split)