Either that or you’d see a string of political prosecutions until ex-presidents chose exile or we finally got a president-for-life like some banana republic (which we are slowly becoming in so many other ways).
Sorry, but a blanket exemption from felony prosecution for numerous crimes committed in office is not a perquisite of the presidency.
Maybe if more people were prosecuted, we'd be less like a banana republic. Policing up the slack actors and corner-cutters is precisely how a society lifts itself up above the banana-pickers.