The problem is, that democrats are damned if they do and damned if they don't on this issue. They could change horses and still lose. All you are doing is pushing splits in the democrats, rather than promoting a realistic path for getting an alternative candidate in the race and winning with that candidate. Both Tim and Ezra make career related decisions all the time - criticizing others for doing the same is just crappy. Also your comments on motives are your opinion, not based on evidence. The problem is Joe Biden being willing to run even if it tears the party apart. That's what I took from his statements this week.