I'm not sure America is ready for a Black man with facial tattoos.
I would mention "speech impediment" and "brain damage," but we've already demonstrated those aren't a bar to getting elected.
Strategy for the Democrats in 2024. . . "Biden, rightly or wrongly, is too damaged. Nobody else has enough name recognition. Vote for whomever you like. We'll try again in '28. Enjoy convicted felon Trump."
It has the advantage of being realistic.