Note that my critique is an attempt at Feynmaning this theory.
Stylized fact 1: Income has remained flat after adjusting for chained CPI.
Stylized fact 2: costs have gone way up adjusting for chained CPI.
Conclusion: Consumption must have gone down, since consumption = Income/Cost.
The problem is that this simply hasn’t happened. People live in bigger homes. They visit the doctor more, and have all sorts of medical procedures that didn’t exist in the past. More people are attending college and receiving degrees than ever before. People just have more of everything.
If you want to argue with this point, I challenge you: find a major category of consumption that has gone down in material terms over a long period of time. The most I can think of is obsolete goods like land lines, or inferior goods like homed cooked meals (relative to restaurant meals).
That’s exactly the opposite of what this theory predicts! Therefore, although I can’t identify exactly where things go wrong, they must go wrong somewhere.