The election is going to Biden vs Trump. That’s the end result. The primary is a waste of time.
Our primary season is long. If Biden drops out, Michelle drops in, and if there is even one recorded video of Trump calling Michelle “Big Mike”, even to denounce that moniker, then Obama is our next president. And I don’t mean Big Mike.
The election will NOT be Biden v Trump.
Biden will win the nomination and at, or shortly after, the Dem Convention will “drop out” or in some other way be removed.
Under Dem National Committee Bylaws, the Committee may then come together and agree on a replacement candidate to enter onto the ballot as the Dem nominee. That will either be Big Mike or Gavin Newsome.
They will then have very light scrutiny (no grueling primaries and months of intense attention) and a sprint to election day with an energized mainstream media slobbering all over them 25/7 for the low information voter to become infatuated with them.