That's what happens when elections are fraudulent. You get completely incompetent people that no one wants.
That's what I think is happening, and maybe even before that. With the Senate at 50/50 they lose the tie-breaker if they move Harris to the presidency, since that Senate won't approve a replacement that is a Dem to break ties for them afterward. With that deadlock in mind the Dems are stuck with not one, but both of those incredibly dysfunctional people and can only watch a butt-kicking coming in 2022.
Indulge me in a wild conspiracy theory. If they're certain they'll lose the House there's always the option of finding a pretext to remove them both. Nanzi Pelosi, who would be losing her Speaker role anyway when the House goes, moves to the presidency and they hang on for 2024 with a veto pen and a two-year-long intense media propaganda campaign. I highly doubt they could pull it off but then I didn't think they'd be able to steal an election, either.