"People of more than 97 nationalities live in the Kaliningrad region. Most numerous are Russians - 78%"
Oops, my mistake based upon an assumption, sir.
Surely this minuscule enclave, this tiny isolated piece of real-estate, owned by Russia, is more of a financial drain than a benefit, to Russia.
One of course never wishes to see one's own country broken up piece-by-piece, but I for one as an American, for example, would not object to spinning Puerto Rico free, or all those isolated Pacific islands which we presently subsidize.