The question is not whether Biden's team could continue to run the country if he were re-elected: the question is if he is re-electable.
I've seen plenty of Presidential elections. Americans like forceful, energetic, aggressive people. I am terrified that this feeble old man will lose to the monster, Trump.
By the way, immediately descending to personal insult and mockery doesn't show you are confident in your arguments: quite the reverse.