At the end of the day:
any Democrat would be better than Trump, even if they have to get a dolly to move Biden around because again, you get the whole crew.
It's also possible some Supreme Court judges get replaced again. Ages of 3 Conservative justices: 75, 74, 69. Need a Dem President (whoever) to put some judges in.
Dementia is a way out for Dems. Just say he has that or something else.
If they're going to make a change, they have to do it soon.
The Democrat Convention is next month - August 19–22, 2024
There is 1 more debate scheduled, September 10, 2 months before election. Another performance like he had could seal the deal for Trump.
I don't see Biden lasting another 4.5 years. I guess Dems are thinking just make it thru November, switch to Kamala when the time comes.