Over the few days since Donald Trump’s election victory, America has gotten a foretaste of the wreckage likely to ensue when he returns to the White House. His promise to endow Robert F. Kennedy Jr. with plenary authority over health and food regulation — and to let him “go wild” — shows once more how little Trump really cares about anyone or anything but himself. As Trump and his associates surely know, Bobby has no qualifications whatsoever to direct or oversee any federal health office, no matter how small, let alone a major agency like the Centers for Disease Control and Prevention or th…