And as a side note on the claim of "Independence" and the strange dichotomy of the military on Okinawa, there is this to consider.
From 2017 to 2020, Japan was highly interested in placing Aegis Ashore facilities on Okinawa. And the main reason why Japan suddenly moved missile defense forces onto Okinawa in 2020 was the fear of the citizens of Okinawa when the program was cancelled.
Okinawa knows that because of their location, if the US was to just up and leave they would at that point be defenseless to China. Even if the US was to completely leave the island, key bases like Kadena and Schwab will continue to be military bases, just occupied by the JDSF and not the US. Kadena is simply too important of an airfield, and Schwab too important as an amphibious base. And if the Navy was to leave the Kin Red and Blue facilities and White Beach, those bases will not close. They will simply become Japanese Naval bases.
About the only base I can think of that might become excess and return to civilian control is the Northern Training Area (NTA). Of course, that is a rugged jungle and mountain area at the far northern part of the island, where literally nobody lives. The Japanese Amphibious Rapid Deployment Brigade could probably do all of their training needed in the inland areas of Camp Schwab, so would not need the NTA. But that land would be like 80% of the island, and pretty much worthless for civilian uses.
Most people likely have little idea of how rough the terrain of Okinawa is. Probably the second roughest terrain I have ever been stationed at, second only to Panama.
Okinawa, Japan
www.google.com
If traversing the island (which I did several times a week on average), once you head south and pass Ishikawa, the terrain is still rough, but more plains and hills. Not the steep almost cliff like terrain of Northern Okinawa. North of there you have a few flat areas (Kin, Henoko, Nago), but most of it is almost impassable terrain of dense jungle and steep mountains.
But I invite any that actually know how to read a topographical map to examine the one I linked above. I am not joking when I say it is among the toughest terrain I ever served in. Even rougher than my time in the Rocky or Sierra Mountains.
And I only say second to Panama because there were less things on Okinawa trying to kill you. About the only threat there were Habu. Panama had a hell of a lot more poisonous snakes, poisonous frogs, and even the freaking insects and palm trees there would try to kill you if they could.