"FDR was in a wheelchair with polio."
His legs didn't work, not his mind.

JFK had a ton of health problems.
Parts of his body were crippled and/or deficient. His brain wasn't one of them.

Joe Biden is the new James Buchanan. Career politician who got in the White house at the end of his career and just didn't have the intellectual capacity to do anything except exacerbate tensions. Same initials too. He was supposed to vanquish Trump, not embolden him for four more years, and yet here we are. Get him out of there ASAP or, just like that other JB, prepare for a Civil War in two years.

BTW, if you find mid-stream your horse is too tired or can't swim, you don't continue to ride him. You rationally contemplate alternative options to get to the other side, which may include getting yourself a little wet.

"do want 4 more years of trump?""

Nope. that is why Biden must go. But establishment Democrats can't handle that, just like they couldn't handle anyone other than Hillary for POTUS back in 2016.