Biden isn't going anywhere. He's an effective president he just can't campaign well. He's never been the strongest orator even without the age issue. I would have liked to see him replaced but it isn't happening so Dems have to get in line and focus on beating Trump in November.
Basically its an old man who makes frequent gaffes vs someone who is a convicted felon, rapist, probable pedophile, and aspiring dictator. If the choice isn't clear to yall you need to have your brain checked. And if America gets this choice wrong we deserve to live under right wing christian/white ethno autocracy