Well, there is no way to force Biden out of the race. And he does have 99% of the Democrat delegates from the rigged primary, and no one can free those delegates from Biden except Biden (or the Angel of Death).

But the pressure will continue to mount.

Unless it doesn't -- if Democrats get the message that Biden will not drop out for any reason and that continuing to talk about him being unfit for office is only guaranteeing a Trump victory, maybe they will stop the public campaign to pressure him to leave the race.