It IS true that general stupidity isn’t limited to any single generation, and no phase of any generation is free of it. Stupidity is a human condition, and we have all been guilty of it at various points in our lives, and no matter how old we are, can fully expect to be guilty of it again many times before we die.
But there is something insidiously institutionalized about this stupidity they are referring to in this article, and I think it is a variety of factors, nothing that could not be overcome.
Parents should be teaching children most of these things; if they don’t take the time to do it they deserve nincompoop children. I’m surprised when I have one of those moments with any of my children, but I’ll make them learn it then & there!
Start with the destruction of the family.
Proceed to denigrate stay at home motherhood.
Lower the learning standards in schools.
Provide generational welfare.
Redefine the pursuit of happiness to provide happiness.
Remove God and morality and replace with PC.
insidiously institutionalized... stupidity
In part, that's because Stupidity comes in such a variety of flavors that it puts Baskin-Robbins to shame.