Biden is just a figurehead, a front, a puppet.
Focus groups cited him as the most non-offensive, most electable of the final 8 or so Dem hopefuls, the others were too outrageous so they MADE them drop out to pave the way for a PARTY victory.
The globalist socialist Marxist Dems want Kamala in there, anyway, so pointing out his ineptitude is mostly irrelevant.
The question will be, who will Kamala appoint as her VP?