Biden is disposable. When he is no longer useful, they will get rid of him. Multiple ways to do that: the 25th amendment, senility, corruption, blackmail, resignation.
Kamala is waiting in the wings. They will get what they want: a corrupt woman with no experience who will be easy to manipulate.
He will resign if that happens.
They’ll prop him up long enough so that Kamala can take over and not be disqualified from running both in 2024 and 2028, unless it’s dire enough that it isn’t feasible.
The 25th Amendment would make Harris the Acting President for about a month at most. It is not the same as removal, resignation, or... death.
Actually, she’s her own lady. She’ll be the national version of Gretchen Whitmer. JMO.