that may be a true take - in the abstract, but the primary season is when the *public* had to make that decision and it didn't. All those ambitious potential democrats in the field that people are talking about all looked at Biden and decided he was too formidable to take on. Now the chattering class in the media want to revisit that decision - and from a vantage point of having much less inside understanding than those potential candidates that didn't run.
The system isn't designed to to just drop in candidates after the fact - not gonna work.
The Northam bruhaha should be the model for this. If Biden just keeps on keeping on, people are finally going to figure out there is no story in his age. If he keels over, then he can be replaced! 🤣