I think you're discounting how easy it would be for them to say "it's all Biden's fault", and lots of people will eat it up.
Obviously Biden's administration was so terrible, so damaging, that the catastrophic reverberations of it will be felt for years to come. Drastic actions will need to be taken, and sacrifices will need to be made. That sort of thing.
``` We are the best because of our culture/genes (genetics was Nazi, culture was italian/Spanish fascism), but a global cabal led by both external and internal ennemies (often communists or anarchists for the fascists, plus jews for the Nazis, hence "judeo-bolchevism") prevent us from reaching our full potential, which will only be reached if we get all the "Lebensraum" or "Spazio vitale" we deserve. ```
Weirdly it create this contradiction, of an enemy undeserving but temporally stronger. Another secondary feature i find interesting is how fascism target first "strong" conservatives before liberals (Shleicher was killed, Luther and Bruning quasi-ignored). Weak turncoats however are treated very well (Von Papen is the most obvious example).