Evidently, yes. Trump winning can only happen because Americans are being as self-interested as he is. I think it speaks to the education divide-the lesser educated are more likely to prioritize their personal situation and blame the incumbent President; better educated voters recognize the danger of Trump and his party, no matter how they personally feel about the economy. They're probably less likely to blame Biden too, and better maintain memories of Trump's disastrous four years.
Yup, though though the initial narrative of this mindset is false. It assumes that people would be better off financially under Trump. A theory that doesn't pass the fact check, but it's hard to argue against such perceptions with scientific data or quotes from economists. The truth is that Biden was forced deal with external economic conditions that no POTUS has control of and Trump would have been confronted with as well. There's no evidence prices go back to 2019 levels if he's elected back into office.
Otherwise, it pretty much nails it that his insane behavior has been normalized over the years and/or people simply grew numb to the scandals. Some believe he correctly addressed a number of issues like immigration, distrust in institutions and that "politicians are corrupt", even though he never came up with real solutions.