It's irrelevant if it doesn't actually propel you past the finish-line, though, isn't it? So explain to me how incumbency and the DNC "building itself around" Biden is substantively altering the outcome of, for emphasis:
Losing large chunks of critical Hispanic & Black Voters (voters who shouldn't be in question to begin with)
Losing Battleground swing-state voters.
Losing in national polling versus Trump (where he was ahead in 2020 or at worst even)
Has aggregate approval ratings in the 30s.
I'll wait.
Next, answer this: Joe Biden is not the nominee yet either, for the convention has yet to happen. Now let's be clear: In the event Biden voluntarily steps down and either an open convention occurs or he endorses, is it really that inconceivable for you to believe overnight polling for such a candidate would skyrocket as both grassroots and establishment and MASSIVE widespread media press inundate such a person with coverage...?
So at the end of the day, we have high confidence Biden will lose in November 6th if we stay the course. If that's the case, I believe we should take the chance to put someone fresh in and who is younger. That assuages a major concern for 70% of the electorate and reinvigorates people to vote for someone new. As Mehdi Hasan said, "Americans love new shit."