There is no replacement candidate, unless it's Harris.
I'm cool with Kamala too. Many won't be, but if it's not her, you're going to lose much of the core demographic of Democratic voters for a generation. That's an outright betrayal.
Biden is not toast, at least not yet. The media fixation on it doesn't help. It's like "her emails" escalated a magnitude. The fat lady ain't even warning up her tonsils yet.
The SCOTUS decision on making the executive have royal prerogative, the Epstein papers having DJT all over them. These barely made a blip compared to Grandpa Joe, but they will.