It objectively is not, even on the issue of affordability. One good example is COVID aid, where the Republicans passed more aid at the federal level than Democrats. (And people didn't forget when Biden did a rugpull with COVID checks after the two Georgia election wins either.)
Though, with both parties being so eminently shitty on affordability, it really doesn't matter. Biden gave lots of speeches about how much he cared about people's cost of living but didn't do anything meaningful to improve it, even with the cost of food becoming prohibitive.
Donald's dementia is clearly getting worse. I would attribute it to Donald's fear of being outed for his crimes, which I imagine is extraordinarily stressful. Kind of a bummer that it's rotting his brain but not giving him cardiac failure.