There were many dems who remembered Trump as the funny orange man, didn't really care to turn out against him, and fell for the "both sides bad" messaging that was absolutely rampant on the left (esp with regard to Kamala and Palestine). So no, I don't think the most important rally-the-base rhetoric was to ratchet up "Trump is Fascist" so much as suppress "Both Sides Bad" while we had an election to win.
Agreed the "both sides bad" messaging was a huge factor here. But that's exactly why we should talk about these fuckups as questions of competence. They are unambiguous evidence of a difference in both sides' ability to actually operate a government!
What was Kamala's 2024 campaign slogan?
I saw that slogan and cringed immediately.