Take

Biden's a documented gaffemaster, but he has survived to this point because he is a competent politician. He's not the one I'd choose of the hundreds of millions of qualified possible applicants, but he's got basic decency, a working mind, a reasonable grasp of his own limitations and the ability to prioritize the future before the present, the bigger picture before the attention-grabbing flashpoint detail and the greater good before his own personal interest. These are not usually unique or distinctive qualities among the two presumptive major party candidates, nor does the cost of forgoing them usually continue being highlighted so clearly each passing day.

(The assertion of basic decency is contingent on the allegations being made against Biden not holding water. If they do turn out to hold water, there are many similarly (and some even more) qualified candidates to take his place.)