this is 100% revisionist history, this and your last post where you said you liked bernie's policies. you were virulently anti-bernie through the entire primary, you shat all over his policies and did absolutely everything you could to push "moderate" candidates.
you voted for the person most likely to win the primary, not the person most likely to win the election, because your priority is and always has been to defeat sanders and the left, not to defeat trump. you said yourself you wanted bob corker to be president, a hardcore conservative who votes with trump 90% of the time.
but suddenly as soon as bernie is out of the running, the guy who wants bob corker to be president likes bernie's policies and thinks progressives have good ideas and moderates don't.
you are fully aware that no democrat in US history has ever won the presidency with the demographics that make up biden's voters. but again, you don't care about that, you only wanted to win the primary, not the presidency.
chasing "the most electable" never works, because the safe pick does not inspire anyone and as a result they will sit at home.
biden won't beat trump.