YASID: "Alien Ruler" possibly

If I sisn't raise this already, does anyone recognise
a short story described here?
<https://qr.ae/p2uyZB>
This is a link to a long and, from experience,
variably accurate memory on  "Quora".
Basically:  An alien lands his spaceship on Earth.
The good news: He represents the galactic empire of
benevolent non-interferers, and Earth is within the
empire.  The bad news: The empire has decided to swap
the space containing Earth for some nicer space owned
by the other galactic empire of exploiting planets
and their inhabitants.  So the message from the
non-interferers is hello, goodbye, and submit.
The asker says "I might have read it in a
SF anthology back in the 80’s or possibly in
Analog or Isaac Asimov’s SF magazine back in
the 80’s."
Which Earth "political" situation is represented
is one of the points of debate: I proposed
Hong Kong, in 1997.  So the alien may look like this. <https://en.wikipedia.org/wiki/Chris_Patten>