> It’s the same hypothesis.
No, perception and reality are different things.
> Its a line trending down
Perception? Sure. Reality? No, it factually wasn't prior to the events that it is being invoked to explain.
Which is why perception of decline is a much more defensible hypothesis as to the cause than actual decline.
It sounds like you think material conditions haven’t gotten worse? Cost of housing, food and healthcare, plus flat wages seem to disagree. I think in this case people’s perception matches reality.
I’ve noticed you refuse to put forward your own reasons, why is that?