If the Dems are serious about beating Trump, they still have time to pick a different candidate in their primaries. Joe Biden is clearly very unpopular - the last election was way too close, and this one is at real risk of Trump winning.
I will literally vote for a non sentient slime mold over Trump, and I will walk barefoot through broken glass to do so if need be. Anyone doing less is playing Russian roulette politics.
No it isn't. Trump's popularity has plummeted since he lost, which is generally not a positive indicator of probable victory. It's possible that Trump wins, but the chances are meager. Remember that Jan 6th and all his legal woes happened after he had already lost against Joe. It's like wrestling someone, losing, getting an amputation, and then having another go at it. So long as Trump continues to drive negative turnout Joe will be fine. Don't forget to vote.