Even if people got pay rises they see the headline price of food (if they are poor) going up by in some cases > 50% as well as rents going up dramatically (ironically caused by increasing interest rates) and even if they got a great raise (and are in theory better off) you are not feeling it, hence the result. Gas prices too.
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.