I think Biden is going to go down as the person that broke the democratic party. But in reality, the blame lies on Obama for convincing Biden to step aside in 2016 and let it be Hillary Clinton. Biden had a much better chance at beating Trump in 2016 than Clinton.
I see what you're saying, but I put that on Hilary. How much dirt must she have had on everyone else such that that the party establishment treated her candidacy as Manifest Destiny and the best democrat unafraid to run against her was socialist grandpa from Vermont who wasn't even a democrat?