The answer is simple.

Biden's mental faculties are nosediving at critical velocity which serves as a fitting end to having sold out to a life long career of corruption of the political offices he's desecrated. He's been a crook so long, even he has no respect for himself. (It reminds me of the same kind of buffoon GWB became.)

To cement his abominable legacy, Biden even has the countless and embarrassing public displays of his creep fetish captured for the disgust of every future generation.