He can say he has what it takes for the presidency but not for presidency and campaign.
He can say he’s good for six months but has concerns about the next four years after that.
The alternative to Biden and his handlers is Harris. Is that an upgrade, would President Harris off leash be any better for thr country? Do you want her running as an incumbent?
Not even the demoncraps want her as an incumbent. They have no intention of nominating her at the convention. Letting her sit as President for a few months would upset that plan.