For a counterargument there is this:
pjmedia.com
Essentially this guy says "doctor" Jill biden enjoys the perks of being a first lady too much to allow the dems to remove her husband. That sounds plausible. I'm not saying I agree with it because the dems will do anything to win so removing biden isn't an insurmountable problem. But until "the doctor" gets on board he is probably going to remain on the ticket.

Trust Me — DOCTOR Jill Biden Has Already Worked Out a Modified 'Weekend at Bernie's' Plan
A favorite parlor game among American political junkies in 2024 is guessing just how and when the De

Essentially this guy says "doctor" Jill biden enjoys the perks of being a first lady too much to allow the dems to remove her husband. That sounds plausible. I'm not saying I agree with it because the dems will do anything to win so removing biden isn't an insurmountable problem. But until "the doctor" gets on board he is probably going to remain on the ticket.