I don't know why people believe otherwise. Maybe it's just rising expectations, fueled by rising inequality?
Rising inequality is entirely enough to explain the whole thing. The bottom two quintiles saw their cost of living absolutely explode, and their salaries not keeping up. Median real income will never reflect something like that.
And that's a lot of people.
Many people don't trust that math.
Some data would be good here. I don't have any, but if you want to imply that the bottom 40% went downwards, please show some data instead of insinuating it.
As ever it's a multivariate problem but the biggest part of it is being promised jam tomorrow and even worse being told things are going great when you see evidence they are not. She should have thrown Joe under a bus.
This isn't just a problem in the US the whole West is ungovernable and we will see most governments getting one term assuming that they don't turn into Victor Orban's Hungary.