Naming the Washington airport after Reagan was never likely to last long. It should be named after someone the people of DC revere and admire - Malcolm X International Airport.
If they start renaming airports (a few years ago, they wanted to rename O’Hare from being named after a WW2 ace to Harold Washington Airport, they compromised and accepted the international terminal being named after the late Mayor of Chicago. I would suggest that JFK return to its original name, Idlewild; there are a myriad of roads and other public items named after the Kennedys in the weeks after their assassinations, I don’t know of any named after Idlewild.