As expected, Trump already backing down on promises. Equally predictably, his cult members believe
his absurd excuses.
Shouldn't be surprising. Trump's claims about things like inflation are nonsense. Why wouldn't they also believe explanations for his not being able to easily fix it that are also nonsense.
Even if you accept his excuse that Biden just messed things up too badly for him to be able to fix, which is more nonsense, inflation is a global problem and is generally worse in most of the world is here, but even if you believe that, do you actually think he didn't realize that until just after the election.
They've been played like this for over a decade now. I wouldn't expect them to realize it now, as obvious as it is.