The worst part was the constant "Bernie would lose as badly as McGovern" gaslighting- which centrist Dems kept up with incessantly even though nearly every poll showed Bernie BEATING Trump solidly.
Biden won- but it was and is bullshit to insist that he was the only Dem who COULD have won. Bernie could have, and Warren could have, took- had she not abandoned her support of single-payer, allowed herself to be used as a battering ram against Bernie by smearing him with her false claim that he said a aoman couldn't be elected president in '20-something he NEVER said- with those two actions, she reduced herself to John Kerry's meaningless and essentially centre-right policies and destroyed any case for her nomination.