Pretty muchBernie vs Biden was a referendum on which voters you wanted in November, the edgy socialists or the moderate suburbanites and the party has collectively decided to go with the moderate suburbanites, which is fine and good, but then being surprised you didn't also get the edgy socialists is a weird complaint. You were never in a position to get both groups and its odd to ever think you were or base your strategy on that.
Put all of this shaming effort into trying to appeal to an even more inscrutable block of voters the party is so enamored with and try to turn some pink centrists baby blue. That was the endgame of the strategy, don't act like you were forced into this choice. The party and the media have been telling the left to fuck off—well forever, but more specifically—for the past year. Now they're fucking off.